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arXiv · 1209.3436

A search for Wilson primes

Edgar Costa·Robert Gerbicz·David Harvey
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Abstract

A Wilson prime is a prime p such that (p-1)! = -1 mod p^2. We report on a search for Wilson primes up to 2 * 10^13, and describe several new algorithms that were used in the search. In particular we give the first known algorithm that computes (p-1)! mod p^2 in average polynomial time per prime.

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Edgar Costa, Robert Gerbicz, David Harvey. 2012-12-05. A search for Wilson primes. https://arxiv.org/abs/1209.3436

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