1,9,11,15,17,19,21,27,33,35,37,41,45,49,57,65,72,81质数有
问题描述:
1,9,11,15,17,19,21,27,33,35,37,41,45,49,57,65,72,81质数有
答
质数是因数只有1和它本身的数.
这些数种,质数是
1,11,17,19,37,41
共有6个