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

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MnStatusDetails
388003271Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1919929115172352480392167.42016-11-20 15:33:12
History
DateUserTypeResult
2016-11-20Alex_soldierF
Factor: 191992911517235248039 / TF: 67-68*
2016-04-11DerekNF
no factor from 2^66 to 2^67
2014-05-03sasaki3NF
no factor from 2^65 to 2^66
2011-03-24Architects CubedNF
no factor from 2^64 to 2^65