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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,因数和倍数,新课标人教版小学数学五年级下册,112=12,26=12,34=12,为了研究方便,在研究因数和倍数时,我们所说的数,指的是整数(一般不包括,0,)。,2,是,12,的因数,6,也是,12,的因数;,12,是,2,的倍数,12,也是,6,的倍数。,18,的因数有哪几个?,18,的因数有,_,。,18,的因数有,1,,,2,,,3,,,6,,,9,,,18,。,1,、,2,、,3,、,6,、,9,、,18,18,的因数有,_,。,。,24,的因数有,_,。,30,的因数有,_,。,一个数的最小因数是,1,,最大的因数,是它本身。,1,,,2,,,3,,,4,,,6,,,8,,,12,,,24,1,,,2,,,3,,,5,,,6,,,10,,,15,,,30,1,,,2,,,3,,,6,,,9,,,18,下面说法对吗?说说理由,。,1,、在,134=31,中,,13,是,4,的倍数。,2,、因为,36=18,,所以,18,是倍数,,3,和,6,是,因数。,3,、,6,既是,6,的因数,也是,6,的倍数。,把下面的数分类:,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,60,36,的因数,60,的因数,1,、,2,、,3,、,4,、,6,、,9,、,12,、,18,、,36,1,、,2,、,3,、,4,、,5,、,6,、,10,、,12,、,15,、,20,、,30,、,60,说出下面两组数中,谁是谁的因数,谁是谁的倍数。,8,和,32 36,和,9,48,的因数有,_,。,1,,,2,,,3,,,4,,,6,,,8,,,12,,,16,,,24,,,48,谢谢指导!,
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