Marin Mersenne 2^P-1
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MnStatusDetails
3048679Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
11479984197641568182812270.02017-09-01 23:53:06
ECM
DigitsB1Curves
2550000108 / 280
Estimated T-Level: 21.9 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Stephan Grupp0C154DACAC50541D0
Verified (Factored)1999-08-31Phillip Twiss0C154DACAC50541D421320
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-28Oliver Kruse09467D58F0AA9B1B1153960753
Verified2017-12-10kkmrkkblmbrbk09467D58F0AA9B1B1191511853
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1054867, B2=226749600
2022-01-23JossNF-PM1
B1=1054867, B2=119912100
2021-05-07JossNF
no factor from 2^67 to 2^68
2021-01-17JossNF
no factor from 2^65 to 2^66
2021-01-17JossNF-PM1
B1=304867, B2=3048679, E=6
2017-12-10kkmrkkblmbrbkC-PRP
M3048679/1147998419764156818281 : 09467D58F0AA9B1B
PRP: Verified
PRP without proof (not generated)
2017-10-28Oliver KruseC-PRP
M3048679/1147998419764156818281 : 09467D58F0AA9B1B
PRP: Verified
PRP without proof (not generated)
2017-09-01storm5510F-ECM
Factor: 1147998419764156818281 / (ECM curve 1, B1=50000, B2=5000000)
2017-05-06Gordon SpenceNF
no factor from 2^66 to 2^67
2016-03-14Squeeky_SquirrelNF-PM1
B1=205000, B2=5688750, 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
2010-11-12Sid & AndyNF
no factor from 2^61 to 2^62
2010-10-03markrNF-PM1
B1=110000, B2=2447500, E=6
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61