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一到十的质数有哪些

更新时间: 2020-10-31 00:00:00     

一到十的质数有2、3、5、7。质数又称素数。一个大于1的自然数,除了1和它自身外,不能被其他自然数整除的数叫做质数;否则称为合数。质数的个数是无穷的。质数有很多独特的性质,如质数p的约数只有两个:1和p;质数的个数公式是不减函数;所有大于10的质数中,个位数只有1,3,7,9。

关键词: 质数 哪些

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