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1和0是合数吗
更新时间: 2020-10-03 00:00:00  

合数是指自然数中除了能被1和本身整除外,还能被其他的数整除的数。“0”、“1”既不是质数也不是合数。

合数指自然数中除了能被1和本身整除外,还能被其他数整除的数。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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