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
4087439TF
No factors below 271
TF target 265
P-1
B1 = 6200000
B2 = 31923601710
ECM
DigitsB1Curves
255000057 / 280
Estimated T-Level: 21.0
LL
StatusDateUserResidueShift
VerifiedRob HargerA6E83036E31E591A0
Verified2000-04-19Stuart LightA6E83036E31E591A2041549
History
DateUserTypeResult
2022-11-05DRobinsonPENF-PM1
B1=6200000, B2=31923601710
2022-04-17mikrNF
no factor from 2^70 to 2^71
2021-09-19mikrNF
no factor from 2^69 to 2^70
2021-08-19ATHNF-PP1
Start=2/7, B1=2500000, B2=177500000
2021-07-22TJAOINF
no factor from 2^68 to 2^69
2020-06-15vbcurtisNF-PM1
B1=3500000, B2=90000000, E=12
2018-11-09YxinityNF
no factor from 2^67 to 2^68
2016-10-12kkmrkkblmbrbkNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-05-23snme2pm1NF
no factor from 2^65 to 2^66
2013-12-18Squeeky_SquirrelNF-PM1
B1=140000, B2=3255000, E=6
2013-11-01David CampeauNF
no factor from 2^64 to 2^65
2013-08-29JayderNF
no factor from 2^63 to 2^64
2011-07-30USAFSSNF-PM1
B1=70000, B2=1102500, E=6
2011-07-01GrunwalderGIMPNF
no factor from 2^1 to 2^63
2010-11-09Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-21Carsten KossendeyNF-PM1
B1=20000, B2=300000