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
2586011Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 10000000
B2 = 10050107760
ECM
DigitsB1Curves
2550000280 / 280
3025000089 / 640
Estimated T-Level: 25.7 ⓘ
LL
StatusDateUserResidueShift
VerifiedThomas Honold014A3A430F1A44700
Verified1999-04-13Clay Curtiss014A3A430F1A4470392645
Verified2018-06-21kkmrkkblmbrbk014A3A430F1A44701313077
History
DateUserTypeResult
2025-04-19JossNF-PM1
B1=10000000, B2=10050107760
2024-03-22TJAOINF
no factor from 2^69 to 2^70
2023-01-19Architects CubedNF-PM1
B1=5000000, B2=8646469650
2021-06-21TJAOINF
no factor from 2^68 to 2^69
2019-06-30lycornNF
no factor from 2^67 to 2^68
2018-06-21kkmrkkblmbrbkC-LL
014A3A430F1A4470
2017-08-20Gordon SpenceNF
no factor from 2^66 to 2^67
2016-08-02mikrNF-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
2015-02-27VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-27VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-21Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-10-12markrNF-PM1
B1=175000, B2=4112500, E=6
2011-01-12JossNF-PM1
B1=50000
2010-11-15JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61