Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
257885161Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
201150425591134.22008-01-04 20:16:57
257885167Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
5735366114091239.12008-01-04 20:05:06
21048601632851361831960.92016-03-11 12:24:02