Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
736063TF
No factors below 268
TF target 244
TF below 2^86 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 7500000
B2 = 1103176824750
ECM
DigitsB1Curves
2550000280 / 280
30250000303 / 640
Estimated T-Level: 27.4
LL
StatusDateUserResidueShift
VerifiedDavid Slowinski273D0
VerifiedRoger GariépyCC4388C1ACE5673D0
VerifiedBrian J. BeesleyCC4388C1ACE5673D0
Verified2015-04-11MadPooCC4388C1ACE5673D425111
History
DateUserTypeResult
2023-05-05masserNF-PP1
Start=6/5, B1=7000000, B2=336000000
2023-04-11masserNF-PP1
Start=171/47, B1=7000000, B2=322000000
2023-04-08masserNF-PP1
Start=2/7, B1=7000000, B2=336000000
2022-04-16lycornNF-PM1
B1=7500000, B2=1103176824750
2022-03-26Gordon SpenceNF
no factor from 2^67 to 2^68
2020-05-10Gordon SpenceNF
no factor from 2^66 to 2^67
2017-09-09Smok_bmv NF
no factor from 2^65 to 2^66
2016-04-16lycornNF
no factor from 2^64 to 2^65
2015-11-24Sid & AndyNF-PM1
B1=7360630, B2=220818900, E=12
2015-10-17Gordon SpenceNF
no factor from 2^63 to 2^64
2015-10-17Gordon SpenceNF
no factor from 2^62 to 2^63
2015-04-11MadPooC-LL
CC4388C1ACE5673D
2015-03-03NRNF
no factor from 2^61 to 2^62
2013-10-29David CampeauNF-PM1
B1=1485000, B2=49005000, E=12
2012-03-29JossNF-PM1
B1=1482891
2011-10-15JossNF-PM1
B1=988594
2011-08-24JossNF-PM1
B1=494297
2011-07-10JossNF-PM1
B1=296578
2010-07-03Architects CubedNF
no factor from 2^60 to 2^61
2008-10-11Sturle SundeNF
no factor from 2^59 to 2^60
2008-10-11Sturle SundeNF
no factor from 2^58 to 2^59