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if p is prime, factors of 2^p-1? - Is it possible?
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2020-10-23, 02:53
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a1call
"Rashid Naimi"
Oct 2015
Remote to Here/There
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Meant 2^p-1
If for any prime p
2*p+1 | 2^p-1
Then 2*p+1 is definitely prime.
The test is deterministic and computationally about as expensive as a PRP test.
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