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## Main Question or Discussion Point

p is prime, not 2. Thanks in advance

- Thread starter xax
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p is prime, not 2. Thanks in advance

mathman

Science Advisor

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There is no p in your expression!p is prime, not 2. Thanks in advance

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he had to have meant (mod p)

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p = n

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He is credited with noticing the theorem, but was unable to prove it. So much for the immortal glory of a name theorem!

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p = n

:rofl:

So what is your question and what have you tried to solve it?

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((n-1)/2)!*((n+1)/2)*((n+3)/2)*...*(n-1) = -1 (mod n).

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Nevermind guys, I figured it out. Thanks for your input.

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