: a^n ≡ 1 (mod n), iff n = (a – 1)^m, where (a, m) are any integer. Proof ?

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Any integer number n > 1 can be written as a product ... Proof Idea: x = a-1 b mod n ... p-1}.(otherwise we have 0 - Read more

Any integer number n > 1 can be written as a product ... has a solution iff d | b. Eq has a solution d | b Proof Sketch: ... Note that ms ≡ 1 mod n and nt ≡ 1 mod m - Read more

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: a^n ≡ 1 (mod n), iff n = (a – 1)^m, where (a, m) are any integer. Proof ? resources

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