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
192971281Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
776238894119434076472066.12015-09-06 11:55:23
History
DateUserTypeResult
2015-09-06demfloroF
Factor: 77623889411943407647 / TF: 66-68
2013-06-15sasaki3NF
no factor from 2^65 to 2^66
2011-04-16-Anonymous-NF
no factor from 2^64 to 2^65
2010-08-04Architects CubedNF
no factor from 2^63 to 2^64