Marin Mersenne 2^P-1
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MnStatusDetails
3083879Factored
FactorDigitsBitsDate
92959622151098821879272273.02017-10-11 08:35:01
ECM
DigitsB1Curves
255000014 / 280
Estimated T-Level: 20.3 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)George WoltmanDD423117582677EB0
Verified (Factored)1999-07-30Tonya PfannkuchDD423117582677EB1681181
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-14Yaroslav Berezhko3CE610D44A2CD5EF1013
Verified2017-11-17Oliver Kruse3CE610D44A2CD5EF1222980213
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1058387, B2=226749600
2022-01-23JossNF-PM1
B1=1058387, B2=119912100
2021-05-08JossNF
no factor from 2^67 to 2^68
2021-03-05JossNF-PM1
B1=308387, B2=3392266, E=6
2017-11-17Oliver KruseC-PRP
M3083879/9295962215109882187927 : 3CE610D44A2CD5EF
PRP: Verified
PRP without proof (not generated)
2017-10-14Yaroslav BerezhkoC-PRP
M3083879/9295962215109882187927 : 3CE610D44A2CD5EF
PRP: Verified
PRP without proof (not generated)
2017-10-11ConductorF-ECM
Factor: 9295962215109882187927 / (ECM curve 2, B1=50000, B2=5000000)
2017-05-18Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-08ThaNF
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
2013-01-05Squeeky_SquirrelNF-PM1
B1=210000, B2=5985000, E=12
2013-01-03dbaughNF
no factor from 2^62 to 2^63
2012-03-26Squeeky_SquirrelNF-PM1
B1=95000, B2=1733750, E=6
2011-11-14Sid & AndyNF
no factor from 2^61 to 2^62
2011-03-14kurlyNF-PM1
B1=55000, B2=907500, E=6
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=180000
2009-02-13Sturle SundeNF
no factor from 2^60 to 2^61