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
975072733Composite: 3 known prime factors
Factored
FactorDigitsBitsDate
156011637291133.92008-05-31 23:58:15
422357980688798891755.22015-01-13 12:33:11
51438602446500468791962.22015-12-28 14:23:29
History
DateUserTypeResult
2015-12-28ConductorF
Factor: 5143860244650046879 / TF: 1-65
2015-01-13TJAOIF
Factor: 42235798068879889 / TF: 55-56