Sorry to disapoint I ve been reading and this stuff is way over my head I just wanted to find other things to say about 4294967297 besides its being a nonprime Fermat number I treid to see if maybe it was being some kind of figurate number besides 4294967297 gonal without any luck Then I treid putting it in by itself to sloane lookup and the Pisot seqs were the only results that didn t have to do with it s Fermatness 22 18 12 Jul 2004 UTC