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
277542739Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18956054258842780038732270.72019-09-28 19:50:03
History
DateUserTypeResult
2019-09-28ConductorF
Factor: 1895605425884278003873 / TF: 70-71
2019-09-23proxy2222NF
no factor from 2^69 to 2^70
2018-07-08Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-06rmaximusNF
no factor from 2^67 to 2^68
2016-01-14Math_is_pureNF
no factor from 2^66 to 2^67
2013-12-07Chang Chia-TcheNF
no factor from 2^65 to 2^66
2011-09-09Lukin DmitryNF
no factor from 2^64 to 2^65
2010-05-18Architects CubedNF
no factor from 2^63 to 2^64