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
667618163Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
3849876153641751963912168.42018-03-11 07:21:12
History
DateUserTypeResult
2018-03-11ConductorF
Factor: 384987615364175196391 / TF: 68-69
2017-02-13sasakiNF
no factor from 2^67 to 2^68
2014-05-14sasakiNF
no factor from 2^66 to 2^67
2013-04-16ramgeisNF
no factor from 2^65 to 2^66
2011-10-24laleraNF
no factor from 2^64 to 2^65
2010-06-16Architects CubedNF
no factor from 2^63 to 2^64