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
85831349Factored
FactorDigitsBitsDate
25221934722656635021292271980885560736117.62018-02-08 08:48:32
P-1 factors
DateFactorB1B2
2018-02-0825221934722656635021292271980885560769000013455000
History
DateUserTypeResult
2018-02-08ky0urakuF-PM1
Factor: 252219347226566350212922719808855607 / (P-1, B1=690000, B2=13455000, E=6)
2017-10-15TheJudgerNF
no factor from 2^75 to 2^76
2017-10-15TheJudgerNF
no factor from 2^74 to 2^75
2017-05-05-Anonymous-NF
no factor from 2^73 to 2^74
2017-03-14Strolling JellyfishNF
no factor from 2^72 to 2^73
2014-01-20SMoffatNF
no factor from 2^71 to 2^72
2013-11-09arnaudNF
no factor from 2^70 to 2^71
2013-09-17ITSNF
no factor from 2^69 to 2^70
2013-09-06ITSNF
no factor from 2^68 to 2^69
2013-09-02ITSNF
no factor from 2^67 to 2^68
2013-08-26ITSNF
no factor from 2^66 to 2^67
2013-02-24AxelssonNF
no factor from 2^65 to 2^66
2010-12-23Architects CubedNF
no factor from 2^64 to 2^65