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
185405777Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
15169779738679510213512270.42019-06-05 16:00:27
History
DateUserTypeResult
2019-06-05Samuel SchmidtF
Factor: 1516977973867951021351 / TF: 70-71
2018-10-26Chabot PrimeNF
no factor from 2^69 to 2^70
2017-06-28kevshawNF
no factor from 2^68 to 2^69
2016-07-18ANONYMOUSNF
no factor from 2^67 to 2^68
2015-08-12KayJongsmaNF
no factor from 2^66 to 2^67
2013-05-19Lukin DmitryNF
no factor from 2^65 to 2^66
2011-04-02RichardNF
no factor from 2^64 to 2^65
2010-07-28Torchwood InstituteNF
no factor from 2^63 to 2^64