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
3309077Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 6300000
B2 = 22713580890
ECM
DigitsB1Curves
2550000280 / 280
3025000060 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedDidier CoudercA08E4D709866069C0
Verified1999-07-04Alan VidmarA08E4D709866069C1663301
History
DateUserTypeResult
2025-06-22Architects CubedNF
no factor from 2^70 to 2^71
2023-05-05Sid & AndyNF-PM1
B1=6300000, B2=22713580890
2022-09-27TJAOINF
no factor from 2^69 to 2^70
2021-07-22TJAOINF
no factor from 2^68 to 2^69
2020-02-21mikrNF-PM1
B1=4000000, B2=150000000, E=12
2018-12-03TJAOINF
no factor from 2^67 to 2^68
2018-08-13JossNF-PM1
B1=410000, B2=3690000
2018-08-08JossNF-PM1
B1=410000, B2=1640000
2018-08-07JossNF-PM1
B1=410000, B2=1230000
2018-08-06JossNF-PM1
B1=410000, B2=820000
2017-02-24Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-29ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2012-11-16Squeeky_SquirrelNF-PM1
B1=205000, B2=4612500, E=6
2012-08-25GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-10-01USAFSSNF-PM1
B1=55000, B2=880000, E=6
2011-09-05markrNF
no factor to 2^62
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=195000
2009-04-01S485122NF
no factor from 2^60 to 2^61