Marin Mersenne 2^P-1
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MnStatusDetails
3072847Factored
FactorDigitsBitsDate
10856965811394332421292269.92021-03-30 11:09:40
ECM
DigitsB1Curves
255000052 / 280
Estimated T-Level: 20.9
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)INTERSHOP CommunicationsA666DF489458EA530
Verified (Factored)1999-11-17Kent LeeA666DF489458EA532175826
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2021-03-31XZTD9AC7759D28793971209586853
History
DateUserTypeResult
2022-01-25JossNF-PM1
B1=1000000, B2=119912100
2022-01-19JossNF
no factor from 2^67 to 2^68
2021-03-31Ben DeloCERT
PRP Certification
Proof certified good
2021-03-31XZTC-PRP
M3072847/1085696581139433242129 : D9AC7759D2879397
PRP proof power = 7
PRP: Verified
Proof certified good
2021-03-30GANF-ECM
Factor: 1085696581139433242129 / (ECM curve 2, B1=50000, B2=5000000, Sigma=3714237795747242)
2021-03-23TJAOINF
no factor from 2^68 to 2^69
2018-08-05ramgeisNF
no factor from 2^67 to 2^68
2018-01-29mikrNF-PM1
B1=3000000, B2=100000000, E=12
2018-01-05JossNF-PM1
B1=780000
2017-05-13Gordon SpenceNF
no factor from 2^66 to 2^67
2017-01-04JossNF-PM1
B1=132000
2016-10-22Squeeky_SquirrelNF-PM1
B1=195000, B2=5460000, E=12
2015-06-06ThaNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-07dbaughNF
no factor from 2^62 to 2^63
2011-10-27Sid & AndyNF
no factor from 2^61 to 2^62
2010-09-21markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61