Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
153668341Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
19735376405179713228972270.72017-07-04 00:58:41
History
DateUserTypeResult
2017-07-04Sergey NosovF
Factor: 1973537640517971322897 / TF: 70-72*
2017-06-13La GüiraNF
no factor from 2^69 to 2^70
2017-02-28Mr-PlonkNF
no factor from 2^68 to 2^69
2016-04-26ANONYMOUSNF
no factor from 2^67 to 2^68
2015-04-09GrunwalderGIMPNF
no factor from 2^66 to 2^67
2013-01-27tscNF
no factor from 2^65 to 2^66
2011-01-21Mr-PlonkNF
no factor from 2^64 to 2^65
2010-06-24Charles A. MorrisNF
no factor from 2^63 to 2^64