This is the slowest form of trial factoring available. You have exhibited zero knowledge of the structure of mersenne factors.
You've never seen "2kp+1"? You could start there.
EDIT: Wait, there are likely even slower trial factoring methods available- I forget how weird some of the inventions are around here....
Last fiddled with by VBCurtis on 2020-10-22 at 05:22
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