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
277463741Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
20477704536295607617212270.82019-09-24 21:19:30
History
DateUserTypeResult
2019-09-24ConductorF
Factor: 2047770453629560761721 / 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
2016-11-06gregbakerstlNF
no factor from 2^67 to 2^68
2016-01-15alan145NF
no factor from 2^66 to 2^67
2013-12-07haphaeuNF
no factor from 2^65 to 2^66
2011-09-08HardyP GermanyNF
no factor from 2^64 to 2^65
2010-04-04Torchwood InstituteNF
no factor from 2^63 to 2^64
2010-04-04Torchwood InstituteNF
no factor from 2^62 to 2^63