Marin Mersenne 2^P-1
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MnStatusDetails
2814103Factored
FactorDigitsBitsDate
66182714069293874255112272.52021-01-05 15:21:51
ECM
DigitsB1Curves
255000064 / 280
Estimated T-Level: 21.1
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)ROLAND BOCKHORST69B8C6D8F5250DFA0
Verified (Factored)1999-05-09Adrian Dacunha69B8C6D8F5250DFA2702305
Verified (Factored)2018-09-05kkmrkkblmbrbk69B8C6D8F5250DFA166038
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-01-13LLangley81D56855CA0F3A33119347953
History
DateUserTypeResult
2021-01-13Franklin WebberCERT
PRP Certification
Proof certified good
2021-01-13LLangleyC-PRP
M2814103/6618271406929387425511 : 81D56855CA0F3A33
PRP proof power = 7
PRP: Verified
Proof certified good
2021-01-05ZenzomaF-ECM
Factor: 6618271406929387425511 / (ECM curve 6, B1=50000, B2=5000000, Sigma=8496601746484706)
2020-01-12masserNF-PM1
B1=5000000, B2=200000000, E=12
2019-10-03masserNF-PM1
B1=2814103, B2=28141030, E=12
2018-12-31chuenkitNF
no factor from 2^67 to 2^68
2018-09-05kkmrkkblmbrbkC-LL
69B8C6D8F5250DFA
2017-10-24Gordon SpenceNF
no factor from 2^66 to 2^67
2017-07-30JossNF-PM1
B1=400000, B2=4000000, E=6
2016-05-12JossNF-PM1
B1=200000, B2=3600000, E=6
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-12ramgeisNF
no factor from 2^65 to 2^66
2015-04-21VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-21VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2012-02-22markrNF
no factor from 2^61 to 2^62
2010-11-16markrNF-PM1
B1=100000, B2=2100000, E=6
2010-11-13JossNF-PM1
B1=15000
2009-02-12Sturle SundeNF
no factor from 2^60 to 2^61