Marin Mersenne 2^P-1
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MnStatusDetails
2139463Factored
FactorDigitsBitsDate
44558053039338568686492271.92020-07-13 02:27:31
ECM
DigitsB1Curves
255000099 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Robert Friberg97DE22DC5543402C0
Verified (Factored)1999-02-07Ken Finlayson97DE22DC5543402C963419
Verified (Factored)2018-04-07kkmrkkblmbrbk97DE22DC5543402C631757
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2020-07-13M Miller1ECE44D7DE2F2D16198261253
Verified2020-07-20Nesowa1ECE44D7DE2F2D161124158453
History
DateUserTypeResult
2020-07-20NesowaC-PRP
M2139463/4455805303933856868649 : 1ECE44D7DE2F2D16
PRP: Verified
PRP without proof (not generated)
2020-07-13M MillerC-PRP
M2139463/4455805303933856868649 : 1ECE44D7DE2F2D16
PRP: Verified
PRP without proof (not generated)
2020-07-13GANF-ECM
Factor: 4455805303933856868649 / (ECM curve 3, B1=50000, B2=5000000, Sigma=2556395745727874)
2019-04-22TJAOINF
no factor from 2^67 to 2^68
2018-04-07kkmrkkblmbrbkC-LL
97DE22DC5543402C
2017-10-22mikrNF-PM1
B1=2500000, B2=125000000, E=12
2016-10-29Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^58 to 2^60
2015-12-27ramgeisNF
no factor from 2^65 to 2^66
2015-03-18VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-18VictordeHollanderNF
no factor from 2^63 to 2^64
2013-12-03c10ck3rNF-PM1
B1=500000, B2=10000000, E=12
2013-02-21dbaughNF
no factor from 2^62 to 2^63
2012-04-16Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-11-27Oscar ÖstlinNF-PM1
B1=80000, B2=1500000, E=6
2010-10-25Oscar ÖstlinNF-PM1
B1=75011
2009-01-05Sturle SundeNF
no factor from 2^60 to 2^61