Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
2793121TF
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 = 5000000
B2 = 8681331750
ECM
DigitsB1Curves
2550000230 / 280
Estimated T-Level: 24.1 ⓘ
LL
StatusDateUserResidueShift
VerifiedLarry English1A9C7A92E271A1CB0
Verified1999-04-23Louis Towles1A9C7A92E271A1CB2071013
Verified2018-08-29kkmrkkblmbrbk1A9C7A92E271A1CB625179
History
DateUserTypeResult
2023-10-06TJAOINF
no factor from 2^69 to 2^70
2023-03-07Architects CubedNF-PM1
B1=5000000, B2=8681331750
2023-01-27JossNF-PM1
B1=1000000, B2=432341910
2021-06-28TJAOINF
no factor from 2^68 to 2^69
2019-12-19BigBrotherNF-PM1
B1=3000000, B2=90000000, E=12
2019-02-26chuenkitNF
no factor from 2^67 to 2^68
2018-08-29kkmrkkblmbrbkC-LL
1A9C7A92E271A1CB
2017-10-19Gordon SpenceNF
no factor from 2^66 to 2^67
2017-07-30JossNF-PM1
B1=400000, B2=4000000, E=6
2016-05-06JossNF-PM1
B1=200000, B2=3600000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-09ramgeisNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2014-11-03JossNF-PM1
B1=122979
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-03-07Grant McCrackenNF
no factor from 2^61 to 2^62
2010-11-22markrNF-PM1
B1=100000, B2=2075000, E=6
2010-11-14JossNF-PM1
B1=15000
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61