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ganeshie8

  • one year ago

suppose \(n\mid (a^n-a)\) for all \(a\) and \(n\) is the least such positive power of \(a\). show that \(n\) is prime

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  1. ikram002p
    • one year ago
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    \(\Large n|a(a^{n-1}-1)\) so n|a or \(\Large n|{a^{n-1}-1}\) first one when n is prime a^n=a mod n huh lol xD i'll complete ltr

  2. ikram002p
    • one year ago
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    didnt reemove my comment so i would remember when i come back!

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