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81的因数有哪几个
更新时间: 2020-10-23 00:00:00  

81的因数有:1、3、9、27、81。假如axb=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。

因数是一个常见的数学名词,用于描述非零整数a和整数b之间存在的整除关系。任何一个正整数都有且仅有一种方式写出它所有素数因子的乘积表达式。这个过程称为素因数分解。

关键词: 因数

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