View Single Post
Old 2020-09-11, 23:00   #1
bhelmes's Avatar
Mar 2016

12016 Posts
Default factors of Mersenne numbers

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 ?)


there must be somewhere a new Mersenne Prime
bhelmes is offline   Reply With Quote