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if p is prime, factors of 2^p-1? - Is it possible?
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2020-10-23, 12:28
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Dr Sardonicus
Feb 2017
Nowhere
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Quote:
Originally Posted by
LaurV
Quote:
Originally Posted by
Dr Sardonicus
So if q = 2*k*p + 1 divides 2
^{p}
- 1, and k < 2*p + 2, then q is prime.
Respective k<6*p+1 when p=1 (mod 4)
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