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
977287709Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
5248578447479220731858.92008-06-11 00:33:52
16264502331449710971960.52015-12-23 16:22:17
History
DateUserTypeResult
2015-12-23ConductorF
Factor: 1626450233144971097 / TF: 1-62