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27是合数吗?
更新时间: 2021-05-06 14:47:29  

1、27是合数,因为27还能被3、9等整除,所以是合数。

2、合数是指在大于1的整数中除了能被1和本身整除外,还能被其他数(0除外)整除的数。与之相对的是质数,而1既不属于质数也不属于合数。最小的合数是4。其中,完全数与相亲数是以它为基础的。

关键词: 合数

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