Marin Mersenne 2^P-1
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MnStatusDetails
3274171Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
38282757476394358553592271.72009-05-24 01:03:47
ECM
DigitsB1Curves
25500004 / 280
Estimated T-Level: 20.1 ⓘ
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Ken Kriesel1D80D7C5195936380
Verified (Factored)1999-08-31The Prime Hunters1D80D7C5195936382245395
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-03Oliver Kruse587DBA41CD945C9D1206680053
Verified2017-12-13ATH587DBA41CD945C9D173407753
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1077416, B2=226749600
2022-04-06LordJuliusNF
no factor from 2^66 to 2^67
2022-04-06LordJuliusNF
no factor from 2^65 to 2^66
2022-04-06LordJuliusNF
no factor from 2^64 to 2^65
2022-04-06LordJuliusNF
no factor from 2^63 to 2^64
2022-04-06LordJuliusNF
no factor from 2^62 to 2^63
2022-04-06LordJuliusNF
no factor from 2^1 to 2^62
2022-01-24JossNF-PM1
B1=1077416, B2=119912100
2021-05-21JossNF
no factor from 2^67 to 2^68
2021-01-03JossNF-PM1
B1=327417, B2=3274171, E=6
2021-01-03JossNF-PM1
B1=327417
2020-12-25JossNF-PM1
B1=109139
2017-12-13ATHC-PRP
M3274171/3828275747639435855359 : 587DBA41CD945C9D
PRP: Verified
PRP without proof (not generated)
2017-11-03Oliver KruseC-PRP
M3274171/3828275747639435855359 : 587DBA41CD945C9D
PRP: Verified
PRP without proof (not generated)
2009-05-24TeamResslerTUBF-ECM
Factor: 3828275747639435855359
2009-04-02S485122NF
no factor from 2^60 to 2^61