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
977074223Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
19541484471030.92008-05-27 23:55:46
25964942757894937211961.22015-12-22 20:53:14
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 2596494275789493721 / TF: 1-62