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
277555997Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18156829289926130874172270.62019-09-29 19:07:56
History
DateUserTypeResult
2019-09-29ConductorF
Factor: 1815682928992613087417 / TF: 70-71
2019-09-21proxy2222NF
no factor from 2^69 to 2^70
2018-07-09Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-07tscNF
no factor from 2^67 to 2^68
2016-01-14Adel El-AtawyNF
no factor from 2^66 to 2^67
2013-12-07jim f in mnNF
no factor from 2^65 to 2^66
2011-09-09tscNF
no factor from 2^64 to 2^65
2010-05-18Architects CubedNF
no factor from 2^63 to 2^64
2010-03-02Squeeky_SquirrelNF
no factor from 2^62 to 2^63