Fermat's Little Theorem

'Fermat's Little Theorem' can also refer to...


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The name sometimes given to the following result:


Let p be a prime, and let a be an integer not divisible by p. Then ap−1 ≡ 1 (mod p).

Sometimes the name is given instead to the following, which is a corollary of the preceding result:


If p is a prime and a is any integer, then apa (mod p).

Subjects: Mathematics.

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