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
2434139TF
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 = 9000000
B2 = 46405160340
ECM
DigitsB1Curves
2550000280 / 280
3025000070 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
Verified1998-02-08Gary Strawn5760FBEA1960AABB0
Verified1999-08-31Lars Lindley5760FBEA1960AABB2167687
Verified2018-05-22kkmrkkblmbrbk5760FBEA1960AABB70437
History
DateUserTypeResult
2023-08-29Sid & AndyNF-PM1
B1=9000000, B2=46405160340
2023-07-17JossNF-PM1
B1=1000000, B2=3645762120
2023-03-22JossNF-PM1
B1=1000000, B2=1580899320
2023-02-23Architects CubedNF
no factor from 2^69 to 2^70
2023-01-01JossNF-PM1
B1=1000000, B2=548467920
2021-07-26TJAOINF
no factor from 2^68 to 2^69
2019-06-24TJAOINF
no factor from 2^67 to 2^68
2018-05-22kkmrkkblmbrbkC-LL
5760FBEA1960AABB
2017-07-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-10-25ramgeisNF
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
2014-05-02mikrNF-PM1
B1=1986400, B2=69524000, E=12
2013-12-04Jerry HallettNF
no factor from 2^62 to 2^63
2012-06-05Sebastian HornbostelNF
no factor from 2^61 to 2^62
2011-01-24Oscar ÖstlinNF-PM1
B1=95000, B2=1923750, E=6
2011-01-09Oscar ÖstlinNF-PM1
B1=75011
2010-11-17JossNF-PM1
B1=20000
2009-01-10Sturle SundeNF
no factor from 2^60 to 2^61