[math-fun] Re: Infinitely many primes, maybe

I wrote

I don't know of any adjustments for N!+1 except divisor>N, but would be happy to learn.

Ed Pegg reminded me of Wilson's Theorem, that P | (P-1)!+1 iff P is prime. Knowing that a number has no small divisors gives a modest boost to its prime-likelihood. There's enough data on N!+1 primes to compare reality with prediction. Rich