Marin Mersenne 2^P-1
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MnStatusDetails
3198607Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
174769038976380174694798812683.92023-03-29 17:12:56
ECM
DigitsB1Curves
2550000106 / 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)1998-03-03Viren Jain187DF3B61888F9550
Verified (Factored)1999-07-27Gary Samad187DF3B61888F955623205
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-04-05LordJulius8BBA264C67C5D69F1290219853
P-1 factors
DateFactorB1B2
2023-03-29174769038976380174694798811020000019599966750
History
DateUserTypeResult
2023-04-05curtiscCERT
PRP Certification
Proof certified good
2023-04-05LordJuliusC-PRP
M3198607/17476903897638017469479881 : 8BBA264C67C5D69F
PRP proof power = 7
PRP: Verified
Proof certified good
2023-03-29Sid & AndyF-PM1
Factor: 17476903897638017469479881 / (P-1, B1=10200000, B2=19599966750)
2022-09-27TJAOINF
no factor from 2^69 to 2^70
2021-06-28TJAOINF
no factor from 2^68 to 2^69
2019-12-02mikrNF-PM1
B1=4000000, B2=150000000, E=12
2018-12-17TJAOINF
no factor from 2^67 to 2^68
2018-07-04JossNF-PM1
B1=430000, B2=4300000, E=6
2017-04-30Gordon SpenceNF
no factor from 2^66 to 2^67
2015-06-21ThaNF
no factor from 2^65 to 2^66
2015-02-15VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-15VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-05Squeeky_SquirrelNF-PM1
B1=215000, B2=6235000, E=12
2013-01-03dbaughNF
no factor from 2^62 to 2^63
2011-10-12Grant McCrackenNF
no factor from 2^61 to 2^62
2009-04-06S485122NF
no factor from 2^60 to 2^61