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

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MnStatusDetails
248920961Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1489269994991866975992167.02016-10-22 22:41:08
History
DateUserTypeResult
2016-10-22demfloroF
Factor: 148926999499186697599 / TF: 67-68
2015-12-14el groccoNF
no factor from 2^66 to 2^67
2013-10-30subgeniusNF
no factor from 2^65 to 2^66
2011-07-23tscNF
no factor from 2^64 to 2^65