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
277345517Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19568084099364692600632270.72019-08-30 16:57:21
History
DateUserTypeResult
2019-08-30ConductorF
Factor: 1956808409936469260063 / TF: 70-71
2019-08-30ConductorNF
no factor from 2^69 to 2^70
2018-07-08Niels_Mache_NextcloudNF
no factor from 2^68 to 2^69
2016-11-06Ollie SampsonNF
no factor from 2^67 to 2^68
2016-01-14HBendtzNF
no factor from 2^66 to 2^67
2013-12-07GrunwalderGIMPNF
no factor from 2^65 to 2^66
2011-09-08sasaki3NF
no factor from 2^64 to 2^65
2010-04-04sasaki3NF
no factor from 2^63 to 2^64
2010-04-04sasaki3NF
no factor from 2^62 to 2^63