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- user warning: Table 'cache_filter' is marked as crashed and should be repaired query: UPDATE cache_filter SET data = '<!--paging_filter--><p>จำนวนคู่และจำนวนคี่<br />\n<b><span style=\"font-size: 18pt\"><o:p></o:p></span></b><b> <br />\n จากตารางจะเห็นว่าจำนวนนับ<span> </span>2,<span> </span>4,<span> </span>6,<span> </span>8<span> </span>และ<span> </span>10<span> </span>มี<span> </span>2<span> </span>เป็นตัวประกอบเรียกจำนวนนับ เช่น 2,<span> </span>4,<span> </span>6,<span> </span>8<span> </span>และ<span> </span>10<span> </span>ว่าจำนวนคู่<br />\n<span style=\"font-size: 16pt\"><o:p></o:p></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span> </span>จำนวนนับอื่น ๆ ที่ไม่ใช่จำนวนคู่<span> </span>เช่น<span> </span>จำนวนนับ<span> </span>1,<span> </span>3,<span> </span>5,<span> </span>7<span> </span>และ 9<span> </span>เรียกว่าจำนวนคี่</span><span style=\"font-size: 16pt\"><o:p></o:p></span></span> </b></p>\n<table border=\"1\" align=\"center\" cellPadding=\"0\" cellSpacing=\"0\" style=\"margin: auto 6.75pt; border-collapse: collapse; border: medium none\">\n<caption><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"></span></caption>\n<tbody>\n<tr>\n<td width=\"168\" vAlign=\"top\" style=\"padding-right: 5.4pt; padding-left: 5.4pt; padding-bottom: 0cm; width: 126pt; padding-top: 0cm; background-color: transparent; border: windowtext 1pt solid\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">จำนวนนับ</span></b><b><span style=\"font-size: 16pt\"><o:p></o:p></span></b></span></span></td>\n<td width=\"204\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: windowtext 1pt solid; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 153pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">ตัวประกอบ</span></b><b><span style=\"font-size: 16pt\"><o:p></o:p></span></b></span></span></td>\n</tr>\n<tr>\n<td width=\"168\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: #f4f4f4; padding-left: 5.4pt; padding-bottom: 0cm; border-left: windowtext 1pt solid; width: 126pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">2<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">3<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">4<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">5<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">6<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">7<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">8<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">9<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">10<o:p></o:p></span></span></span></td>\n<td width=\"204\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: #f4f4f4; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 153pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>2<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>3<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>2,<span> </span>4<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>5<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>2,<span> </span>3,<span> </span>6<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>7<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>2,<span> </span>4,<span> </span>8<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">1,<span> </span>3,<span> </span>9<br />\n </span><span style=\"font-size: 16pt\"><o:p></o:p></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">1,<span> </span>2,<span> </span>5,<span> </span>10<o:p></o:p></span></span></span></td>\n</tr>\n</tbody>\n</table>\n<p><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><br />\n<span style=\"font-family: tahoma,arial,helvetica,sans-serif\">ในการตรวจสอบว่าจำนวนนับจำนวนใดเป็นจำนวนคู่ หรือจำนวนคี่อาจจะพิจารณาได้ดังนี้ <br />\n<span style=\"font-size: 16pt\"><o:p></o:p></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span> </span>12<span> </span>มี<span> </span>1,<span> </span>2,<span> </span>3,<span> </span>4,<span> </span>6,<span> </span>12<span> </span>เป็นตัวประกอบ<span> </span>2<span> </span>เป็นตัวประกอบตัวหนึ่งของ<span> </span>12<br />\n</span><span style=\"font-size: 16pt\"><o:p></o:p></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span> </span>ดังนั้น<span> </span><span> </span>=<span> </span>6<span> </span>ซึ่งหารได้ลงตัว</span><span style=\"font-size: 16pt\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> <br />\n</span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span></span><v:roundrect arcsize=\"10923f\" fillcolor=\"gray\" style=\"margin-top: 8.2pt; z-index: 2; margin-left: 45pt; width: 5in; position: absolute; height: 54pt\" id=\"_x0000_s1027\"><v:textbox><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"> </span></v:textbox></v:roundrect><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span> <span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"> </span></o:p></span></span></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"></span></o:p></span></span></span></span></span></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"></span></o:p></span></span></span></span></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"></span></o:p></span></span></span></span></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span><span style=\"font-size: 16pt\"><o:p><span style=\"color: #000000; font-family: Times New Roman\"></span></o:p></span></span></span></span></span></span></p>\n<div style=\"text-align: center\">\n<span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><img border=\"0\" width=\"300\" src=\"/files/u2453/Image300_1___Custom___Custom_.gif\" height=\"138\" /> </span>\n</div>\n<p></p>\n<table width=\"100%\" cellPadding=\"0\" cellSpacing=\"0\">\n<tbody>\n<tr>\n<td style=\"background-color: transparent; border: #f4f4f4\">\n<div>\n <span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 15pt; font-family: \'Angsana New\'\" lang=\"TH\">ในการพิจารณาจำนวนคู่<span> </span>จำนวนคี่<span> </span>อาจจะพิจารณาได้คือ<span> </span>ถ้าจำนวนนับนั้นหารด้วย 2</span><span style=\"font-size: 15pt\"><o:p></o:p></span></span> <span style=\"font-size: 15pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">ลงตัว<span> </span>ก็เป็นจำนวนคู่<span> </span>แต่ถ้าหารด้วย<span> </span>2<span> </span>ไม่ลงตัวก็เป็นจำนวนคี่<o:p></o:p></span></span> </span>\n </div>\n</td>\n</tr>\n</tbody>\n</table>\n<p><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"> </span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span> </span><span> </span></span></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span></span></span></span></p>\n<div style=\"text-align: center\">\n<span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><img border=\"0\" width=\"200\" src=\"/files/u2453/1-000428-000002_1___Custom_.gif\" height=\"155\" style=\"width: 145px; height: 128px\" /> </span>\n</div>\n<p><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"> </span><span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"> </span></span><span style=\"font-size: 16pt\"><o:p></o:p></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span> </span>จงทำเครื่องหมาย<span> </span>/ ลงในช่องจำนวนคู่หรือจำนวนคี่ให้สอดคล้องกับจำนวนที่กำหนดให้</span><span style=\"font-size: 16pt\"><o:p></o:p></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\"><span> </span><o:p></o:p></span></span></span></p>\n<div align=\"left\">\n<table border=\"1\" align=\"center\" width=\"20%\" cellPadding=\"0\" cellSpacing=\"0\" style=\"height: 20%\">\n<caption><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"></span></caption>\n<tbody>\n<tr>\n<td width=\"118\" vAlign=\"top\" style=\"padding-right: 5.4pt; padding-left: 5.4pt; padding-bottom: 0cm; width: 88.2pt; padding-top: 0cm; background-color: transparent; border: windowtext 1pt solid\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">จำนวนนับ<o:p></o:p></span></span></b> </span></td>\n<td width=\"118\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: windowtext 1pt solid; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 118.8pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">จำนวนคู่</span></b><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></b></span> </span></td>\n<td width=\"118\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: windowtext 1pt solid; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 117pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">จำนวนคี่</span></b><b><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></b></span> </span></td>\n</tr>\n<tr>\n<td width=\"118\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: #f4f4f4; padding-left: 5.4pt; padding-bottom: 0cm; border-left: windowtext 1pt solid; width: 88.2pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\">12<br />\n </span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">17<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">18<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">21<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">24<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">27<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">30<o:p></o:p></span></span> </span></td>\n<td width=\"118\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: #f4f4f4; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 118.8pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/</span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span> </span></td>\n<td width=\"118\" vAlign=\"top\" style=\"border-right: windowtext 1pt solid; padding-right: 5.4pt; border-top: #f4f4f4; padding-left: 5.4pt; padding-bottom: 0cm; border-left: #f4f4f4; width: 117pt; padding-top: 0cm; border-bottom: windowtext 1pt solid; background-color: transparent\"><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"color: #000000\"><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">-<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span></span><span style=\"font-family: tahoma,arial,helvetica,sans-serif\"><span style=\"color: #000000\"><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\">/<br />\n </span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\" lang=\"TH\"><span style=\"color: #000000\">-</span></span><span style=\"font-size: 16pt; font-family: \'Angsana New\'\"><o:p></o:p></span> </span></td>\n</tr>\n</tbody>\n</table>\n</div>\n<p></p>\n', created = 1715727741, expire = 1715814141, headers = '', serialized = 0 WHERE cid = '3:627251a787def69b258a65c28faa8b2b' in /home/tgv/htdocs/includes/cache.inc on line 112.
จำนวนคู่ จำนวนคี่
เมื่อ เสาร์, 04/10/2008 - 15:41 | แก้ไขล่าสุด อาทิตย์, 05/10/2008 - 09:42| โดย 
anchalee88จำนวนคู่และจำนวนคี่
จากตารางจะเห็นว่าจำนวนนับ 2, 4, 6, 8 และ 10 มี 2 เป็นตัวประกอบเรียกจำนวนนับ เช่น 2, 4, 6, 8 และ 10 ว่าจำนวนคู่
| จำนวนนับ |
ตัวประกอบ |
| 1 |
1, |
ในการตรวจสอบว่าจำนวนนับจำนวนใดเป็นจำนวนคู่ หรือจำนวนคี่อาจจะพิจารณาได้ดังนี้
|
ในการพิจารณาจำนวนคู่ จำนวนคี่ อาจจะพิจารณาได้คือ ถ้าจำนวนนับนั้นหารด้วย 2
|
| จำนวนนับ |
จำนวนคู่ |
จำนวนคี่ |
| 12 17 |
/ |
- |
สร้างโดย:
นางอัญชลี สง่าทอง
แหล่งอ้างอิง:
หนังสือเรียนคณิตศาสตร์ ม.1 
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มีโทษทั้งจำคุกและปรับในอัตราสูง
ช่วยกันนะครับ
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ด่วน...... ขณะนี้
พระราชบัญญัติลิขสิทธิ์ (ฉบับที่ 2) พ.ศ. 2558
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ขอให้นักเรียนและคุณครูที่ใช้งาน
เว็บ thaigoodview ในการส่งการบ้าน
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