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
3404729Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^78 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 16202806620
ECM
DigitsB1Curves
2550000271 / 280
Estimated T-Level: 24.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedKelly Price30648410B3C003600
Verified1999-10-29Alex_Alaniz30648410B3C00360741816
History
DateUserTypeResult
2025-05-21Architects CubedNF
no factor from 2^70 to 2^71
2024-07-26JossNF-PM1
B1=10000000, B2=16202806620
2023-12-31JossNF-PM1
B1=2438747, B2=5135190060
2023-08-27JossNF-PM1
B1=1000000, B2=1604743140
2021-09-02MadPooNF
no factor from 2^69 to 2^70
2021-04-02axnNF-PM1
B1=15000000, B2=750000000
2020-12-26axnNF
no factor from 2^68 to 2^69
2019-02-18TJAOINF
no factor from 2^67 to 2^68
2017-01-26Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-04-06Gordon SpenceNF
no factor from 2^65 to 2^66
2015-02-24VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-24VictordeHollanderNF
no factor from 2^63 to 2^64
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-10-29markrNF-PM1
B1=225000, B2=5737500, E=12
2011-08-06Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-04Carsten KossendeyNF-PM1
B1=15000, B2=206250
2009-03-25S485122NF
no factor from 2^60 to 2^61