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
977237399Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
736445341641228791756.02008-06-11 00:32:06
15659296975862110071960.42015-12-23 16:16:28
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1565929697586211007 / TF: 1-62