16 Jul
2007
16 Jul
'07
5:11 p.m.
On 7/16/07, David Wilson <davidwwilson@comcast.net> wrote:
It looks as if B(p) == 2 (mod p) for prime p.
Is this true, and are there "Bell pseudoprimes" in this respect?
There are none < 2500, according to a Q&D Maple search I did. It would not be too difficult to widen this range substantially. If it turns out that p is prime just when B(p) mod p = 2, you will have discovered the Wilson Theorem Jr. !! [the Sr. version being that p is prime just when (p-1)! mod p = 1] WFL