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既有因数2又有因数5的数有哪些
更新时间: 2020-10-31 00:00:00  

既有因数2又有因数5的数有无数个,个位数字为0的数既有因数2,又有因数5。

因数是指整数a除以整数b(b≠0)的商正好是整数而没有余数,我们就说b是a的因数。

假如a*b=c(a、b、c都是整数),那么我们称a和b就是c的因数。需要注意的是,唯有被除数,除数,商皆为整数,余数为零时,此关系才成立。反过来说,我们称c为a、b的倍数。在研究因数和倍数时,小学数学不考虑0。

关键词: 因数 哪些

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