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
672595949Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
5612475217348520997432168.92018-04-07 16:42:27
History
DateUserTypeResult
2018-04-07ConductorF
Factor: 561247521734852099743 / TF: 68-69
2017-01-07NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-09sasakiNF
no factor from 2^66 to 2^67
2013-12-24sasakiNF
no factor from 2^65 to 2^66