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

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MnStatusDetails
231122851Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1919697426686890906392167.42016-09-24 10:22:36
History
DateUserTypeResult
2016-09-24NickF
Factor: 191969742668689090639 / TF: 67-68
2015-11-15Math_is_pureNF
no factor from 2^66 to 2^67
2013-09-24GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-06-23sannerud.comNF
no factor from 2^64 to 2^65