
Re: Primes of the form n!+1
Posted:
Jun 26, 2008 2:43 PM


On Jun 26, 2:02 pm, Robert Israel <isr...@math.MyUniversitysInitials.ca> wrote: > that we don't know any reason to expect n!+1 to be divisible by anything in > particular.
Well, in some cases we do, e.g. (p1)!+1 is divisible by p whenever p is prime, and if 4n+3 is prime, then it divides either (2n+1)!+1 or (2n +1)!1. This isn't going to help much for enumeration, though.

