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
117239
Composite: proven not-prime with Lucas-Lehmer test
No factors below 268
TF target 244
P-1
B1 = 10000000000
B2 = 488473391706300
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
3510000001566 / 1566
4030000004588 / 4588
45110000009201 / 9201
50440000002862 / 16550
Estimated T-Level: 45.9
TF below 2^147 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShiftSoftware
VerifiedUnknown749D0Unknown,(aka U)
VerifiedMike GachA7C9C26B0E3D749D0Windows,Prime95,v11,(aka WC)
VerifiedBrian J. BeesleyA7C9C26B0E3D749D0Mac,John Sweeney,vLL1.0b1,(aka J4)
VerifiedEivind TrielA7C9C26B0E3D749D21017Windows,Prime95,v24 final,(aka Wc1)
Verified2016-06-01MadPoo 🙂A7C9C26B0E3D749D104856Windows 64-bit,Prime95,v26,(aka We4)
History
DateUserTypeResult
2023-09-03masserNF-PP1Start=91/19, B1=50000000, B2=3950000000
2023-09-02masserNF-PP1Start=6/5, B1=50000000, B2=3950000000
2023-06-28Oliver KruseNF-PM1B1=10000000000, B2=488473391706300
2023-02-17JossNF-PM1B1=1000000, B2=522803591310
2023-01-13JossNF-PM1B1=1000000, B2=173706132600
2022-05-05404_factor_not_foundNFno factor TF: 67-68
2022-03-07LordJuliusNFno factor TF: 54-55
2021-04-24Oliver KruseNF-PP1Start=2/7, B1=10000000, B2=4000000000
2020-02-04Gordon SpenceNFno factor TF: 66-67
2019-06-21YxinityNFno factor TF: 65-66
2018-05-15chuenkitNFno factor TF: 64-65
2016-06-01MadPoo 🙂C-LLA7C9C26B0E3D749D
2016-03-05Gordon SpenceNFno factor TF: 63-64
2016-03-05Gordon SpenceNFno factor TF: 62-63
2016-02-23Mark RoseNFno factor TF: 57-58
2015-08-13NRNFno factor TF: 61-62
2013-09-27lycornNFno factor TF: 60-61
2013-01-21alpertronNF-PM1B1=100000000, B2=2000000000, E=12
2009-01-09Sturle SundeNFno factor TF: 59-60
2008-12-31Sturle SundeNFno factor TF: 58-59
2003-09-29-anonymous-NF-PM1B1=262144, B2=26214400, E=12
2003-02-09-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, E=12
2002-05-18-anonymous-NFno factor TF: 1-57
2001-02-18-anonymous-NF-PM1B1=1000000, B2=25000000
2000-12-31-anonymous-NFno factor TF: 1-56
2000-12-21-anonymous-NFno factor TF: 1-56
2000-04-12-anonymous-NFno factor TF: 1-54
1999-09-14-anonymous-NFno factor TF: 52-53