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2020-2021:teams:legal_string:欧拉函数_lgwza [2020/07/03 22:31]
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2020-2021:teams:legal_string:欧拉函数_lgwza [2021/01/27 16:28] (当前版本)
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   - 若正整数 $a, n$ 互质, 则有 $a^{\varphi(n)}\equiv1\pmod{n}$   - 若正整数 $a, n$ 互质, 则有 $a^{\varphi(n)}\equiv1\pmod{n}$
   - 若正整数 $a, n$ 互质, 则对于任意正整数 $b$, 有 $a^b\equiv a^{b\ mod\ \varphi(n)}\pmod{n}$   - 若正整数 $a, n$ 互质, 则对于任意正整数 $b$, 有 $a^b\equiv a^{b\ mod\ \varphi(n)}\pmod{n}$
-  - $a, n\in \N$, 则$a^b\equiv \left\{\begin{array}{rl}a^b\pmod{n}&,​b<​\varphi(n),​\\a^{b\ mod\ \varphi(n)+\varphi(n)}\pmod{n}&,​b\ge\varphi(n). \end{array} \right.$+  - $a, n\in N$, 则$a^b\equiv \left\{\begin{array}{rl}a^b\pmod{n}&,​b<​\varphi(n),​\\a^{b\ mod\ \varphi(n)+\varphi(n)}\pmod{n}&,​b\ge\varphi(n). \end{array} \right.$
   - 若 $gcd(m,​n)=d$,​ 则 $\varphi(mn)=d\varphi(m)\varphi(n)/​\varphi(d)$   - 若 $gcd(m,​n)=d$,​ 则 $\varphi(mn)=d\varphi(m)\varphi(n)/​\varphi(d)$
   - 若 $m\ |\ n$, 则 $\varphi(mn)=m\varphi(n)$   - 若 $m\ |\ n$, 则 $\varphi(mn)=m\varphi(n)$
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 === 参考资料 === === 参考资料 ===
  
-https:%%//%%blog.csdn.net/​niiick/​article/​details/​81347041+[[https://​blog.csdn.net/​niiick/​article/​details/​81347041|]]
  
-https:%%//%%www.cnblogs.com/​BlueHeart0621/​p/​11706153.html+[[https://​www.cnblogs.com/​BlueHeart0621/​p/​11706153.html|]]
2020-2021/teams/legal_string/欧拉函数_lgwza.1593786717.txt.gz · 最后更改: 2020/07/03 22:31 由 lgwza