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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Exponent Range:










MnStatusDetails
9017893Factored
FactorDigitsBitsDate
6562342102153346073304816935193099.12022-05-23 16:43:46
ECM
DigitsB1Curves
25500003 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Sturle Sunde21611255AFC67E380
Verified (Factored)2003-03-07Tofer Chagnon21611255AFC67E386062797
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2022-05-29PoaoB7DAAC09C954697A1884046753
P-1 factors
DateFactorB1B2
2022-05-2365623421021533460733048169351920000005350264920
History
DateUserTypeResult
2022-05-29John McClaneCERT
PRP Certification
Proof certified good
2022-05-29PoaoC-PRP
M9017893/656234210215334607330481693519 : B7DAAC09C954697A
PRP proof power = 8
PRP: Verified
Proof certified good
2022-05-23ThaF-PM1
Factor: 656234210215334607330481693519 / (P-1, B1=2000000, B2=5350264920)
2021-10-25mikrNF
no factor from 2^70 to 2^71
2021-05-04-Anonymous-NF
no factor from 2^69 to 2^70
2019-11-10mnd9NF
no factor from 2^68 to 2^69
2019-03-07USAFSSNF-PM1
B1=520000, B2=15860000, E=12
2017-01-02snme2pm1NF
no factor from 2^67 to 2^68
2016-03-17snme2pm1NF
no factor from 2^66 to 2^67
2015-05-12VictordeHollanderNF
no factor from 2^65 to 2^66
2013-09-14NesowaNF
no factor from 2^64 to 2^65
2012-05-14Squeeky_SquirrelNF-PM1
B1=105000, B2=1968750, E=6