Marin Mersenne 2^P-1
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MnStatusDetails
11647897Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2670561573275121022092792477.82024-11-21 20:13:21
ECM
DigitsB1Curves
25500005 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Bad2001-01-28Lars Geisler69595AF25918DE348044509
Verified (Factored)2004-06-21Ars Technica Team Prime Rib93EA72701AEC59AA8215386
Verified (Factored)2005-04-02Shane Sanford93EA72701AEC59AA10656392
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-11-21yuriy_5-1925FAA39479BB0FF1666024853
History
DateUserTypeResult
2024-12-13yuriy_5-1NF
no factor from 2^73 to 2^74
2024-11-22Torchwood InstituteCERT
PRP Certification
Proof certified good
2024-11-21yuriy_5-1C-PRP
M11647897/267056157327512102209279 : 925FAA39479BB0FF
PRP proof power = 8
PRP: Verified
Proof certified good
2024-11-21yuriy_5-1F-ECM
Factor: 267056157327512102209279 / (ECM curve 1, B1=65536, B2=599046, Edwards Sigma=356935349042594187)
2024-07-12yuriy_5-1NF-PM1
B1=14024070, B2=119800600920
2024-04-22yuriy_5-1NF
no factor from 2^72 to 2^73
2021-08-22LaurVNF-PM1
B1=6189107, B2=185673210
2020-03-06Aaron HavilandNF-PM1
B1=365000, B2=8121250, e=12
2018-02-05Oliver KruseNF
no factor from 2^67 to 2^72
2018-01-23ramgeisNF
no factor from 2^68 to 2^69
2018-01-23ramgeisNF
no factor from 2^67 to 2^68
2016-01-30VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-09Sid & AndyNF-PM1
B1=125000, B2=2187500, E=6
2014-12-20NesowaNF
no factor from 2^65 to 2^66
2013-11-04lycornNF
no factor from 2^64 to 2^65