Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

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MnStatusDetails
277638043Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
18587391254503516007212270.72019-10-05 10:48:03
History
DateUserTypeResult
2019-10-05ConductorF
Factor: 1858739125450351600721 / TF: 70-71
2019-09-19proxy2222NF
no factor from 2^69 to 2^70
2018-07-09KingNF
no factor from 2^68 to 2^69
2016-11-07La GüiraNF
no factor from 2^67 to 2^68
2016-01-14Mr-PlonkNF
no factor from 2^66 to 2^67
2013-12-08HardyP GermanyNF
no factor from 2^65 to 2^66
2011-09-09sasaki3NF
no factor from 2^64 to 2^65
2010-04-04CandideNF
no factor from 2^63 to 2^64
2010-04-04CandideNF
no factor from 2^62 to 2^63