Re: double mersenne prime
- --- In firstname.lastname@example.org,
sta staf <sta_staf@...> wrote:
> sory i mean n+1 is the second odd after nBut that's ludicrous, even by your low
> is personel expersion (sory)
> p = (2^n)-1 : is mersenne numbre :
> if (p - (n+2)) /n = prime ...
standards of coherence, since Fermat's
little theorem shows that
(2^n - 1 - (n+2))/n
is not an integer when n is prime.