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
572115413Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1780580407916205195912167.32016-11-19 14:27:04
History
DateUserTypeResult
2016-11-19ConductorF
Factor: 178058040791620519591 / TF: 67-68
2015-10-28sasakiNF
no factor from 2^66 to 2^67
2014-10-13sasakiNF
no factor from 2^65 to 2^66
2011-06-10Architects CubedNF
no factor from 2^64 to 2^65