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
977059799Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
78164783931032.92008-05-27 23:45:05
20389772825796615591960.82015-12-22 20:50:31
History
DateUserTypeResult
2015-12-22ConductorF
Factor: 2038977282579661559 / TF: 1-62