Marin Mersenne 2^P-1
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Exponent Range:










MnStatusDetails
6986911TF
No factors below 272
TF target 267
TF below 2^81 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 3500000
B2 = 9616446840
ECM
DigitsB1Curves
2550000280 / 280
30250000120 / 640
Estimated T-Level: 25.9 ⓘ
LL
StatusDateUserResidueShift
Verified1999-08-07Dan PhillipsE899F81B0A58C7323935893
Verified2001-10-06Marc Getty / Phil FizurE899F81B0A58C7322505506
Verified2001-10-27Marc Getty / Phil FizurE899F81B0A58C7321123755
Verified2001-11-17Marc Getty / Phil FizurE899F81B0A58C7326158716
History
DateUserTypeResult
2023-09-21ThaNF-PM1
B1=3500000, B2=9616446840
2021-11-05Seth_TrNF-PM1
B1=2000000, B2=58000000, E=12
2021-09-25SRBaseNF
no factor from 2^71 to 2^72
2021-09-06SRBaseNF
no factor from 2^70 to 2^71
2021-08-12takahashiNF
no factor from 2^69 to 2^70
2020-04-10TJAOINF
no factor from 2^68 to 2^69
2018-02-26-Anonymous-NF
no factor from 2^67 to 2^68
2016-04-27Gordon SpenceNF
no factor from 2^66 to 2^67
2015-07-03VictordeHollanderNF
no factor from 2^65 to 2^66
2014-02-14lycornNF
no factor from 2^64 to 2^65
2014-02-09NesowaNF
no factor from 2^63 to 2^64
2011-09-08Carsten KossendeyNF-PM1
B1=445000, B2=13683750, E=12