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
2593363Composite: 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
3025000076 / 640
Estimated T-Level: 25.6 ⓘ
LL
StatusDateUserResidueShift
VerifiedSimon BurgeAEB3E62F6BC3C2700
BadJim Butler8D77A5B84ABFBF530
Verified1999-04-23Thomas NakakiAEB3E62F6BC3C2702479455
Verified2018-06-23kkmrkkblmbrbkAEB3E62F6BC3C2701105651
History
DateUserTypeResult
2025-04-22JossNF-PM1
B1=10000000, B2=10050107760
2024-04-19TJAOINF
no factor from 2^69 to 2^70
2023-02-04Architects CubedNF-PM1
B1=5000000, B2=8646469650
2021-06-03TJAOINF
no factor from 2^68 to 2^69
2019-04-29TJAOINF
no factor from 2^67 to 2^68
2018-11-10mikrNF-PM1
B1=3000000, B2=135000000, E=12
2018-08-17JossNF-PM1
B1=600000, B2=6000000, E=6
2018-06-23kkmrkkblmbrbkC-LL
AEB3E62F6BC3C270
2017-08-20Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-06ramgeisNF
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
2013-09-08AxelssonNF
no factor from 2^62 to 2^63
2012-06-23Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-02-23James HeinrichNF-PM1
B1=300000, B2=8000000, E=12
2011-01-15JossNF-PM1
B1=50000
2010-11-15JossNF-PM1
B1=20000
2009-01-31Sturle SundeNF
no factor from 2^60 to 2^61