问题 填空题

在1~17中,质数有______;合数有______;偶数有______;奇数有______.

答案

在1~17中,质数有2,3,5,7,11,13,17;合数有4,6,8,9,12,14,15,16;偶数有2,4,6,8,10,12,14,16;

奇数有1,3,5,7,9,11,13,15,17;

故答案依次为:2,3,5,7,11,13,17,4,6,8,9,12,14,15,16,2,4,6,8,10,12,14,16,

1,3,5,7,9,11,13,15,17.

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