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
277758401Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
14052876160119541663612270.32019-10-13 14:30:05
History
DateUserTypeResult
2019-10-13ConductorF
Factor: 1405287616011954166361 / TF: 70-71
2019-09-17proxy2222NF
no factor from 2^69 to 2^70
2018-07-09Chabot PrimeNF
no factor from 2^68 to 2^69
2016-11-06Mikhail E. GolosovNF
no factor from 2^67 to 2^68
2016-01-18ANONYMOUSNF
no factor from 2^66 to 2^67
2013-12-08haphaeuNF
no factor from 2^65 to 2^66
2011-09-09ALSNF
no factor from 2^64 to 2^65
2010-04-05garoNF
no factor from 2^63 to 2^64
2010-04-05garoNF
no factor from 2^62 to 2^63