perplexus.info :: Just Math : Remainder

Remainder (Posted on 2003-10-16)

If 'p' be a prime, then what is the remainder when (p - 1)! is divided by p?

See The Solution Submitted by Ravi Raja

Rating: 3.8889 (9 votes)

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By inspection...

| Comment 1 of 10

Just by plugging in some primes, I would say the answer is p-1, but I dont have a proof yet.

Posted by Brian Smith on 2003-10-16 09:38:41

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