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:





MnDetails
109169
Composite: proven not-prime with Lucas-Lehmer test
No factors below 268
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2026-02-21-anonymous-ECMC5S190.11 %2026-02-222026-10-05
2026-01-05-anonymous-ECMC1S22026-01-062026-01-21
2025-05-06-anonymous-ECMC1S22026-02-222026-02-26
P-1
B1 = 10000000000
B2 = 671544773439540
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000001566 / 4588
Estimated T-Level: 36.7
TF below 2^117 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedUnknown1A7E0Unknown,(aka U)
VerifiedMike Gach7D977F0F61F81A7E0Windows,Prime95,v11,(aka WC)
VerifiedBrian J. Beesley7D977F0F61F81A7E0Mac,John Sweeney,vLL1.0b1,(aka J4)
VerifiedEivind Triel7D977F0F61F81A7E63055Windows,Prime95,v24 final,(aka Wc1)
Verified2016-06-01MadPoo 🙂7D977F0F61F81A7E68425Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2023-03-05masserNF-PP1Start=6/5, B1=60000000, B2=2160000000
2023-03-03Oliver KruseNF-PM1B1=10000000000, B2=671544773439540
2023-02-24JossNF-PM1B1=1000000, B2=370915575030
2023-02-19masserNF-PP1Start=154/29, B1=60000000, B2=2100000000
2023-02-13masserNF-PP1Start=2/7, B1=60000000, B2=2160000000
2022-05-05404_factor_not_foundNFno factor TF: 67-68
2022-03-07LordJuliusNFno factor TF: 54-55
2020-01-30Gordon SpenceNFno factor TF: 66-67
2019-06-03YxinityNFno factor TF: 65-66
2018-05-18chuenkitNFno factor TF: 64-65
2018-05-10mikrNF-PM1B1=1000000000, B2=60000000000, E=12
2016-06-01MadPoo 🙂C-LL7D977F0F61F81A7E
2016-03-08Gordon SpenceNFno factor TF: 63-64
2016-03-08Gordon SpenceNFno factor TF: 62-63
2016-02-23Mark RoseNFno factor TF: 57-58
2015-08-25NRNFno factor TF: 61-62
2013-10-09lycornNFno factor TF: 60-61
2012-12-17alpertronNF-PM1B1=100000000, B2=2000000000, E=12
2009-01-18Sturle SundeNFno factor TF: 59-60
2009-01-01Sturle SundeNFno factor TF: 58-59
2006-02-01JossNF-PM1B1=2000000
2003-09-29-anonymous-NF-PM1B1=262144, B2=26214400, E=12
2003-02-02-anonymous-NF-PM1B1=131072, B2=13107200, E=30
2002-07-20-anonymous-NF-PM1B1=65536, B2=6553600, E=12
2002-06-02-anonymous-NF-PM1B1=32768, B2=3276800
2002-05-05-anonymous-NFno factor TF: 1-57
2001-01-08-anonymous-NF-PM1B1=1000000, B2=25000000
2000-12-14-anonymous-NFno factor TF: 1-56
2000-04-12-anonymous-NFno factor TF: 1-54
1999-09-14-anonymous-NFno factor TF: 52-53