Thread
:
factors of Mersenne numbers
View Single Post
2020-09-13, 02:05
#
5
CRGreathouse
Aug 2006
5,939 Posts
Quote:
Originally Posted by
bhelmes
If f | Mp and p is prime then
a) f | 2n²-1
b) but not f=2n²-1
a) is clear for me but b) is a guess (I checked some numbers)
The first and fastest counterexample is welcome (Or a proof ?)
2*2^2-1 | 2^3-1
CRGreathouse
View Public Profile
Find More Posts by CRGreathouse