Marin Mersenne 2^P-1
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MnStatusDetails
2385989Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
6792571253388835461592169.22020-05-04 10:23:50
ECM
DigitsB1Curves
2550000113 / 280
Estimated T-Level: 22.0 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Aaron Gilliland084A3BEA2035D6120
Verified (Factored)1999-03-26C. Cooper / S. Boone084A3BEA2035D6121454993
Verified (Factored)2018-05-15kkmrkkblmbrbk084A3BEA2035D6121184947
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2020-05-05Oliver KruseF61476CE0A70ECF61175141453
Verified2020-05-06GANF61476CE0A70ECF61152501253
History
DateUserTypeResult
2020-05-06GANC-PRP
M2385989/679257125338883546159 : F61476CE0A70ECF6
PRP: Verified
PRP without proof (not generated)
2020-05-05Oliver KruseC-PRP
M2385989/679257125338883546159 : F61476CE0A70ECF6
PRP: Verified
PRP without proof (not generated)
2020-05-04Oliver KruseF-ECM
Factor: 679257125338883546159 / (ECM curve 3, B1=50000, B2=5000000, Sigma=5988775918976395)
2019-03-18TJAOINF
no factor from 2^67 to 2^68
2018-05-15kkmrkkblmbrbkC-LL
084A3BEA2035D612
2017-06-21Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2015-11-02mikrNF-PM1
B1=3000000, B2=100000000, E=12
2015-11-01ramgeisNF
no factor from 2^65 to 2^66
2015-03-09VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-09VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-15-Anonymous-NF-PM1
B1=126901
2013-01-23dbaughNF
no factor from 2^62 to 2^63
2012-06-01Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-12-26markrNF-PM1
B1=100000, B2=2075000, E=6
2010-11-15JossNF-PM1
B1=20000
2010-11-08JossNF-PM1
B1=15000
2009-01-14Sturle SundeNF
no factor from 2^60 to 2^61