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
3717031Composite: 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 = 12829690
B2 = 14458844400
ECM
DigitsB1Curves
2550000280 / 280
3025000088 / 640
Estimated T-Level: 25.7 ⓘ
LL
StatusDateUserResidueShift
Verified1998-02-01Johannes StahlDF0D97A0D21C16E00
Verified1999-08-22Jim EvesDF0D97A0D21C16E01259833
History
DateUserTypeResult
2025-05-06TJAOINF
no factor from 2^70 to 2^71
2024-11-08JossNF-PM1
B1=12829690, B2=14458844400
2023-12-31JossNF-PM1
B1=2354622, B2=5118553440
2023-09-03JossNF-PM1
B1=1000000, B2=1508917410
2021-05-19axnNF-PM1
B1=14000000, B2=700000000
2021-03-08axnNF
no factor from 2^69 to 2^70
2020-12-15axnNF
no factor from 2^68 to 2^69
2019-01-07TJAOINF
no factor from 2^67 to 2^68
2016-11-01Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-24ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^60 to 2^61
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-01-22VictordeHollanderNF
no factor from 2^64 to 2^65
2015-01-22VictordeHollanderNF
no factor from 2^63 to 2^64
2012-12-14Squeeky_SquirrelNF-PM1
B1=245000, B2=7717500, E=12
2012-04-19GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-04-25Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=20000, B2=265000