问题

Questions in category: 初等数论 (Elementary Number Theory).

证明 $10^k\equiv -2(\text{mod} 6)$

Posted by haifeng on 2015-05-09 14:28:32 last update 2015-05-09 14:28:32 | Answers (0) | 收藏

证明 $10^k\equiv -2(\text{mod} 6)$.