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Forum: And now for something completely different 2021-04-26, 06:17
Replies: 8
Views: 961
Posted By slandrum
It's not really surprising or disappointing that...

It's not really surprising or disappointing that the bases that are powers have 0 or 1 repunit primes.

(4p-1)/3 = (2p-1)(2p+1)/3

(8p-1)/7 = (2p-1)(4p+2p+1)/7
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