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
3346327Composite: 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 = 6200000
B2 = 22250037810
ECM
DigitsB1Curves
2550000280 / 280
3025000071 / 640
Estimated T-Level: 25.6 ⓘ
LL
StatusDateUserResidueShift
Verified1997-11-21Lawrence LeeA02B646C61E57CDA0
Verified2000-05-31Wojciech FlorekA02B646C61E57CDA2234672
History
DateUserTypeResult
2025-06-14Architects CubedNF
no factor from 2^70 to 2^71
2023-05-13Sid & AndyNF-PM1
B1=6200000, B2=22250037810
2023-05-10JossNF-PM1
B1=1000000, B2=962851890
2022-08-01TJAOINF
no factor from 2^69 to 2^70
2021-07-01TJAOINF
no factor from 2^68 to 2^69
2020-08-25mikrNF-PM1
B1=4000000, B2=150000000, E=12
2018-10-29TJAOINF
no factor from 2^67 to 2^68
2017-03-03Gordon SpenceNF
no factor from 2^66 to 2^67
2016-04-22USAFSSNF-PM1
B1=230000, B2=6670000, E=12
2016-03-03ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-02-11VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-11VictordeHollanderNF
no factor from 2^63 to 2^64
2012-11-15GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-08-25markrNF
no factor from 2^61 to 2^62
2010-09-14markrNF-PM1
B1=95000, B2=2042500, E=6
2009-03-28S485122NF
no factor from 2^60 to 2^61