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20以内3的倍数有哪些
更新时间: 2020-10-31 00:00:00  

20以内3的倍数有3、6、9、12、15、18。一个整数能够被另一个整数整除,这个整数就是另一整数的倍数。如15能够被3或5整除,因此15是3的倍数,也是5的倍数。一个数的倍数有无数个,也就是说一个数的倍数的集合为无限集。注意不能把一个数单独叫做倍数,只能说谁是谁的倍数。

关键词: 以内 倍数 哪些

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