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
4174603Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 265
P-1
B1 = 6200000
B2 = 28122644550
ECM
DigitsB1Curves
2550000180 / 280
Estimated T-Level: 23.2 ⓘ
LL
StatusDateUserResidueShift
VerifiedDax PratherDE46D59FBF06D33C0
Verified2000-03-08shelley gilesDE46D59FBF06D33C637293
History
DateUserTypeResult
2024-12-05Andrew BNF
no factor from 2^71 to 2^72
2022-12-07DRobinsonPENF-PM1
B1=6200000, B2=28122644550
2022-05-15mikrNF
no factor from 2^70 to 2^71
2021-07-07axnNF
no factor from 2^69 to 2^70
2021-07-01TJAOINF
no factor from 2^68 to 2^69
2020-12-28Dylan DelgadoNF-PM1
B1=1000000, B2=20000000, E=12
2018-12-07YxinityNF
no factor from 2^67 to 2^68
2017-12-20YxinityNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-06-05snme2pm1NF
no factor from 2^65 to 2^66
2013-11-02David CampeauNF
no factor from 2^64 to 2^65
2013-10-15JayderNF
no factor from 2^63 to 2^64
2013-08-13Squeeky_SquirrelNF-PM1
B1=125000, B2=2406250, E=6
2011-08-21USAFSSNF-PM1
B1=45000, B2=630000, E=6
2011-07-17GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-01-28Grant McCrackenNF
no factor from 2^61 to 2^62
2009-08-03Carsten KossendeyNF-PM1
B1=25000, B2=337500