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
2634241Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 270
TF target 263
TF below 2^76 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 20000000
B2 = 54443613840
ECM
DigitsB1Curves
2550000244 / 280
Estimated T-Level: 24.4 ⓘ
LL
StatusDateUserResidueShift
VerifiedJim HuntE63EC1F76D4D80810
Verified1999-03-26Tim DenneheyE63EC1F76D4D8081725597
Verified2018-07-11kkmrkkblmbrbkE63EC1F76D4D8081387516
History
DateUserTypeResult
2024-02-23TJAOINF
no factor from 2^69 to 2^70
2023-02-15kurlyNF-PM1
B1=20000000, B2=54443613840
2022-12-05JossNF-PM1
B1=1000000, B2=449428980
2021-06-03TJAOINF
no factor from 2^68 to 2^69
2019-11-01masserNF-PM1
B1=2640000, B2=26400000, E=12
2019-03-18TJAOINF
no factor from 2^67 to 2^68
2018-07-11kkmrkkblmbrbkC-LL
E63EC1F76D4D8081
2017-09-01Gordon SpenceNF
no factor from 2^66 to 2^67
2017-04-22JossNF-PM1
B1=360000, B2=3600000, E=6
2016-12-29JossNF-PM1
B1=206385
2016-02-29ramgeisNF
no factor from 2^65 to 2^66
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
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
2012-06-16Grant McCrackenNF
no factor from 2^61 to 2^62
2011-01-18James HeinrichNF-PM1
B1=180000, B2=4275000, E=6
2009-06-21USAFSSNF-PM1
B1=30000, B2=420000
2009-01-27Sturle SundeNF
no factor from 2^60 to 2^61