Posted by haifeng on 2015-05-24 09:05:22 last update 2015-05-24 09:05:22 | Answers (0) | 收藏
形如 $10^k+157$ 的素数有
\[ 10^{23}+157,\quad 10^{54}+157,\quad 10^{55}+157, \]
