Marin Mersenne 2^P-1
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MnStatusDetails
12075143Factored
FactorDigitsBitsDate
33674028011030823434572271.52023-10-24 01:18:21
126013216187880809953032373.42016-02-19 00:52:47
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2001-06-03Jürgen Kahnert8AA6954D2CD0188E152110
Bad2004-09-16Paul RenaultC7ADF4354B2B0B864368170
Verified (Factored)2005-04-26Daniel Swanson8AA6954D2CD0188E11547716
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2022-01-17krackerCB5E9C502BAF65021907042653
Verified (Factored)2022-01-19LaurVCB5E9C502BAF650211062213553
Verified2023-10-30Oliver KruseCB5E9C502BAF65022416464253
P-1 factors
DateFactorB1B2
2023-10-243367402801103082343457500000287291550
History
DateUserTypeResult
2023-10-30LOBESCERT
PRP Certification
Proof certified good
2023-10-30Oliver KruseC-PRP
M12075143/12601321618788080995303/3367402801103082343457 : CB5E9C502BAF6502
PRP proof power = 8
PRP: Verified
Proof certified good
2023-10-24nordiF-PM1
Factor: 3367402801103082343457 / (P-1, B1=500000, B2=287291550)
2023-10-16nordiNF-PM1
B1=500000
2022-01-19Ben DeloCERT
PRP Certification
Proof certified good
2022-01-19LaurVC-PRP
M12075143/12601321618788080995303 : CB5E9C502BAF6502
PRP proof power = 8
PRP: Verified (Factored)
Proof certified good
2022-01-17krackerC-PRP
M12075143/12601321618788080995303 : CB5E9C502BAF6502
PRP: Verified (Factored)
PRP without proof (not generated)
2016-02-19ATHF-ECM
Factor: 12601321618788080995303 / (ECM curve 1, B1=50000, B2=5000000)
2015-05-27ThaNF
no factor from 2^67 to 2^68
2015-02-09ThaNF
no factor from 2^66 to 2^67
2015-02-06ThaNF-PM1
B1=300000, B2=6000000, E=6
2013-10-03NesowaNF
no factor from 2^65 to 2^66
2013-09-22lycornNF
no factor from 2^64 to 2^65