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
977559391Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
13998650479131340.32008-06-11 00:37:48
15274115092312589271960.42015-12-23 17:36:41
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1527411509231258927 / TF: 1-62