Marin Mersenne 2^P-1
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MnStatusDetails
2654543Factored
FactorDigitsBitsDate
787397359495519734513030472686.02021-03-10 22:06:43
ECM
DigitsB1Curves
255000092 / 280
Estimated T-Level: 21.6
TF below 2^67 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1997-12-30Fumitaka HayashiF0BB0A5BEA3D761E0
Verified (Factored)1999-05-02John D. HawkinsonF0BB0A5BEA3D761E642407
Verified (Factored)2018-07-20kkmrkkblmbrbkF0BB0A5BEA3D761E1927209
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-03-11mrh4A0FDE627F0844171120936053
History
DateUserTypeResult
2021-03-11Section 31CERT
PRP Certification
Proof certified good
2021-03-11mrhC-PRP
M2654543/78739735949551973451303047 : 4A0FDE627F084417
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-10daveward2005F-ECM
Factor: 78739735949551973451303047 / (ECM curve 2, B1=50000, B2=5000000, Sigma=2375446884388343)
2019-11-26masserNF-PM1
B1=2000000, B2=50000000, E=12
2019-05-13TJAOINF
no factor from 2^67 to 2^68
2018-07-20kkmrkkblmbrbkC-LL
F0BB0A5BEA3D761E
2017-09-08Gordon SpenceNF
no factor from 2^66 to 2^67
2017-05-13JossNF-PM1
B1=360000, B2=3600000, E=6
2017-01-10JossNF-PM1
B1=206385
2016-12-29JossNF-PM1
B1=171988
2016-02-23Mark RoseNF
no factor from 2^59 to 2^60
2016-01-21ramgeisNF
no factor from 2^65 to 2^66
2015-02-23VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-23VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-14dbaughNF
no factor from 2^62 to 2^63
2012-06-02Grant McCrackenNF
no factor from 2^61 to 2^62
2011-01-20James HeinrichNF-PM1
B1=180000, B2=4320000, E=6
2009-06-23USAFSSNF-PM1
B1=30000, B2=420000
2009-01-26Sturle SundeNF
no factor from 2^60 to 2^61