Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2571067Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^75 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 10050107760
ECM
DigitsB1Curves
2550000230 / 280
Estimated T-Level: 24.1 ⓘ
LL
StatusDateUserResidueShift
VerifiedWilliam H. Geiger71F49E98B7A523840
Verified1999-05-09Johan Småros71F49E98B7A523842439055
Verified2018-06-15kkmrkkblmbrbk71F49E98B7A523842360599
History
DateUserTypeResult
2025-04-12JossNF-PM1
B1=10000000, B2=10050107760
2024-03-29TJAOINF
no factor from 2^69 to 2^70
2023-01-14Architects CubedNF-PM1
B1=5000000, B2=8646469650
2021-06-10TJAOINF
no factor from 2^68 to 2^69
2019-09-06YxinityNF
no factor from 2^67 to 2^68
2018-06-15kkmrkkblmbrbkC-LL
71F49E98B7A52384
2017-08-13Gordon SpenceNF
no factor from 2^66 to 2^67
2016-06-11mikrNF-PM1
B1=3200000, B2=112000000, E=12
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-08ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-18Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-04-16James HeinrichNF-PM1
B1=175000, B2=4112500, E=6
2011-01-10JossNF-PM1
B1=50000
2010-12-21JossNF-PM1
B1=20000
2009-01-30Sturle SundeNF
no factor from 2^60 to 2^61