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
3252349Composite: 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 = 8600000
B2 = 22046060400
ECM
DigitsB1Curves
2550000280 / 280
3025000092 / 640
Estimated T-Level: 25.7 ⓘ
LL
StatusDateUserResidueShift
Verified1999-01-02Olli HeikkiläBDB2684A03EDC9160
Verified1999-06-15Ben SandeeBDB2684A03EDC916368577
History
DateUserTypeResult
2025-07-02Architects CubedNF
no factor from 2^70 to 2^71
2023-04-30Sid & AndyNF-PM1
B1=8600000, B2=22046060400
2022-01-05TJAOINF
no factor from 2^69 to 2^70
2021-02-04ViliamFNF
no factor from 2^68 to 2^69
2020-07-27mikrNF-PM1
B1=4000000, B2=150000000, E=12
2019-01-14TJAOINF
no factor from 2^67 to 2^68
2017-03-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-07-12JossNF-PM1
B1=381150, B2=9010000, E=6
2016-01-14Squeeky_SquirrelNF-PM1
B1=170000, B2=4505000, E=6
2015-06-28ThaNF
no factor from 2^65 to 2^66
2015-02-18VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-18VictordeHollanderNF
no factor from 2^63 to 2^64
2014-10-07JossNF-PM1
B1=99470
2014-06-11JossNF-PM1
B1=79735
2012-12-30dbaughNF
no factor from 2^62 to 2^63
2011-09-21markrNF
no factor to 2^62
2011-09-11USAFSSNF-PM1
B1=60000, B2=1050000, E=6
2009-07-04Carsten KossendeyNF-PM1
B1=15000, B2=191250
2009-04-04S485122NF
no factor from 2^60 to 2^61