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
3445759Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 7900000
B2 = 20272480410
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8 ⓘ
LL
StatusDateUserResidueShift
VerifiedJohn Lloyd9B15A27F1284F8120
VerifiedBrian J. Beesley9B15A27F1284F8120
Verified2015-11-14MadPoo9B15A27F1284F812641845
History
DateUserTypeResult
2025-06-01Architects CubedNF
no factor from 2^70 to 2^71
2023-05-05Sid & AndyNF-PM1
B1=7900000, B2=20272480410
2022-05-31TJAOINF
no factor from 2^69 to 2^70
2021-07-20mikrNF-PM1
B1=5000000, B2=200000000, E=12
2021-06-09NumberwangNF-PM1
B1=1000000, B2=30000000
2021-01-04axnNF
no factor from 2^68 to 2^69
2018-07-23TJAOINF
no factor from 2^67 to 2^68
2017-02-06Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2016-01-04ramgeisNF
no factor from 2^65 to 2^66
2015-11-14MadPooC-LL
9B15A27F1284F812
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-19HBendtzNF-PM1
B1=500000, B2=10000000, E=12
2014-07-18JossNF-PM1
B1=78627
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-11-04USAFSSNF-PM1
B1=60000, B2=945000, E=6
2011-08-05markrNF
no factor to 2^62
2009-07-06Carsten KossendeyNF-PM1
B1=15000, B2=210000
2009-03-21S485122NF
no factor from 2^60 to 2^61