Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
7939037Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 267
P-1
B1 = 3000000
B2 = 8070112050
ECM
DigitsB1Curves
25500006 / 280
Estimated T-Level: 20.1 ⓘ
LL
StatusDateUserResidueShift
Verified1999-11-04Richard OtterE4A44F97729FA2BE1722347
Verified2003-05-04Mark SlatterE4A44F97729FA2BE7918671
History
DateUserTypeResult
2023-08-29onlinegameNF
no factor from 2^71 to 2^72
2023-06-13ThaNF-PM1
B1=3000000, B2=8070112050
2021-12-04mikrNF
no factor from 2^70 to 2^71
2020-09-26-Anonymous-NF
no factor from 2^69 to 2^70
2020-02-07TJAOINF
no factor from 2^68 to 2^69
2018-07-24ramgeisNF
no factor from 2^67 to 2^68
2016-10-08Squeeky_SquirrelNF-PM1
B1=245000, B2=6308750, E=12
2016-08-17Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-01-04David CampeauNF
no factor from 2^64 to 2^65
2013-10-02NesowaNF
no factor from 2^63 to 2^64
2012-09-06Squeeky_SquirrelNF-PM1
B1=100000, B2=1900000, E=6