Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
671806181Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
4753499544815367519372168.72018-04-03 13:33:11
History
DateUserTypeResult
2018-04-03ConductorF
Factor: 475349954481536751937 / TF: 68-69
2017-01-13NoPolarBearsHereNF
no factor from 2^67 to 2^68
2014-07-07sasakiNF
no factor from 2^66 to 2^67
2013-04-19ramgeisNF
no factor from 2^65 to 2^66