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Topic:
cotpi 67  Composite factorial plus one
Replies:
7
Last Post:
Mar 10, 2013 4:19 PM



quasi
Posts:
12,067
Registered:
7/15/05


Re: cotpi 67  Composite factorial plus one
Posted:
Mar 8, 2013 1:24 AM


cotpi wrote:
>How many positive integers n are there such that n! + 1 is >composite?
Infinitely many.
Hint: Wilson's Theorem.
quasi



