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
1619
Composite: proven not-prime with Lucas-Lehmer test
No factors below 266
TF target 244
Assignments
AssignedUserWork TypeStage% DoneUpdatedEst CompleteExpired
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052088-06-22
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052088-06-22
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052088-06-22
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052088-06-22
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052088-06-22
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-05NStormECM2025-12-052089-04-21
2025-12-04NStormECMC7S246.20 %2025-12-052076-08-12
2025-12-04NStormECMC7S243.21 %2025-12-052077-01-15
2025-12-04NStormECMC7S249.18 %2025-12-052076-03-08
2025-12-04NStormECMC7S246.20 %2025-12-052076-08-12
2025-12-04NStormECMC7S249.18 %2025-12-052076-03-08
2025-12-04NStormECMC7S246.20 %2025-12-052076-08-12
2025-12-04NStormECMC7S246.20 %2025-12-052076-08-12
2025-12-04NStormECMC7S243.21 %2025-12-052077-01-15
2025-12-04NStormECMC7S243.21 %2025-12-052077-01-15
2025-12-04NStormECMC7S255.16 %2025-12-052075-04-30
2025-12-04NStormECMC7S252.17 %2025-12-052075-10-04
2025-12-04NStormECMC7S225.27 %2025-12-052079-08-11
2025-12-04NStormECMC7S225.27 %2025-12-052079-08-11
2025-12-04NStormECMC7S231.25 %2025-12-052078-10-03
2025-12-04NStormECMC7S228.26 %2025-12-052079-03-08
2025-12-04NStormECMC7S234.24 %2025-12-052078-04-29
2025-12-04NStormECMC7S234.24 %2025-12-052078-04-29
2025-12-04NStormECMC7S219.29 %2025-12-052080-06-19
2025-12-04NStormECMC7S279.08 %2025-12-052071-11-26
2025-12-04NStormECMC7S285.05 %2025-12-052071-01-17
2025-12-04NStormECMC7S282.07 %2025-12-052071-06-23
2025-12-04NStormECMC7S282.07 %2025-12-052071-06-23
2025-12-04NStormECMC7S282.07 %2025-12-052071-06-23
2025-10-13Kamil GorskiPM1-SS157.94 %2026-01-102027-10-12
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
2025-07-15PhyxickECM2025-07-151970-01-01
P-1
B1 = 2000000000000
B2 = 5242884041378733750
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
504400000016550 / 16550
5511000000040830 / 40830
60260000000105362 / 105362
65800000000194238 / 194238
702400000000148298 / 350860
Estimated T-Level: 67.1
TF below 2^218 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedUnknown64E00Unknown,(aka U)
VerifiedGeorge Woltman3F964611757CE4E00Woltman,Prime95,first web release,(aka W4)
VerifiedGord Palameta3F964611757CE4E0434Linux 32-bit,Prime95,v23,(aka WZ2)
Verified2015-04-11MadPoo 🙂3F964611757CE4E0229Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2025-12-24One ManNF-PM1B1=637139620324, B2=2661554263017399750
2024-09-01MooMoo2NF-PM1B1=2000000000000, B2=5242884041378733750
2024-02-06ANONYMOUSNF-PP1Start=2/7, B1=6450000, B2=645000000
2024-01-19ANONYMOUSNF-PM1B1=250000000000, B2=86578453271310
2023-08-09masserNF-PP1Start=6/5, B1=6450000000, B2=1154550000000
2023-07-16masserNF-PP1Start=115/19, B1=6450000000, B2=258000000000
2023-06-28masserNF-PM1B1=216000000000, B2=1278447286523507100
2023-06-06anonymous2NF-PP1Start=2/7, B1=134217728, B2=1879048192
2022-11-28musava_ribicaNF-PM1B1=1234567890123, B2=10112632860330
2022-11-26musava_ribicaNF-PM1B1=888888888888, B2=10013724490770
2022-11-21musava_ribicaNF-PM1B1=777777777777, B2=977702834428320
2022-11-20musava_ribicaNF-PM1B1=275275275275, B2=78963414009480
2022-11-14musava_ribicaNF-PM1B1=222222222222, B2=948273970373730
2022-05-04DobriNF-PM1B1=161916191619, B2=424465486442197200
2022-04-30DobriNFno factor TF: 39-40
2022-04-30DobriNFno factor TF: 1-39
2022-02-05arachnotronNF-PM1B1=1000000, B2=100000000
2021-12-23Smoker88NF-PM1B1=50000, B2=5000000
2021-05-12ATHNF-PP1Start=2/7, B1=1000000000, B2=231000000000
2020-12-22Ruslan BorisovNFno factor TF: 65-66
2018-06-06Andriy MakukhaNFno factor TF: 64-65
2017-11-15snme2pm1NFno factor TF: 63-64
2016-09-28James HintzNF-PM1B1=3790662020300, B2=303252961624000, E=12
2016-05-18snme2pm1NFno factor TF: 62-63
2016-02-23James HintzNF-PM1B1=2092126946740, B2=167370155739200, E=12
2015-07-08MadPoo 🙂NF-PM1B1=1210100683469, B2=10000000000000, E=12
2015-06-06snme2pm1NFno factor TF: 61-62
2015-04-11MadPoo 🙂C-LL3F964611757CE4E0
2014-04-04Sid & AndyNFno factor TF: 60-61
2013-04-02Le ComteNF-PM1B1=100000000000, B2=10000000000000, E=12
2010-12-18monstNFno factor TF: 58-60
2009-05-31James HintzNF-PM1B1=33000000000, B2=330000000000, E=12
2008-12-09Matthias WurtingerNF-PM1B1=30000000000
2008-12-07Matthias WurtingerNF-PM1B1=10000000000, B2=20000000000, E=12
2008-11-09David CampeauNF-PM1B1=5000000000, B2=500000000000, E=12
2008-11-08David CampeauNF-PM1B1=110000000, B2=11000000000, E=12
2008-11-08David CampeauNF-PM1B1=100000000, B2=10000000000, E=12
2008-11-08David CampeauNF-PM1B1=10000000, B2=1000000000, E=12
2008-11-08David CampeauNF-PM1B1=1000000, B2=100000000, E=12
2002-12-25-anonymous-NF-PM1B1=4290000000
2002-10-19Alex KruppaNFno factor TF: 1-57
2002-09-29Alex KruppaNFno factor TF: 1-57
2002-09-14Alex KruppaNFno factor TF: 1-57
2002-09-14-anonymous-NF-PM1B1=3221225472, B2=4290000000, E=48
2002-09-07Alex KruppaNFno factor TF: 1-57
2002-08-03-anonymous-NF-PM1B1=2147483648, B2=4290000000, E=48
2002-05-25-anonymous-NF-PM1B1=1073741824, B2=4290000000
2001-05-20-anonymous-NF-PM1B1=3000000000, B2=4290000000
2001-02-11-anonymous-NF-PM1B1=10000, B2=1000000
2001-02-11-anonymous-NF-PM1B1=1000000, B2=100000000
2000-07-17-anonymous-NFno factor TF: 1-56
2000-01-25-anonymous-NFno factor TF: 54-55
1999-12-15-anonymous-NFno factor TF: 53-54
1999-09-14-anonymous-NFno factor TF: 50-51
1999-09-14-anonymous-NFno factor TF: 52-53
1998-07-05-anonymous-NFno factor TF: 50-52