What is the remainder when 5!25! is divided by 31?

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- Apr 9th 2009, 12:26 PMArythPrime Numbers and Divisibility
What is the remainder when 5!25! is divided by 31?

- Apr 10th 2009, 11:21 AMCaptainBlack
- Apr 10th 2009, 12:36 PMJaneBennet
Or use Wilson’s theorem.