Marin Mersenne 2^P-1
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MnStatusDetails
3028349Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
113810593922967435592063.32010-10-12 17:13:41
ECM
DigitsB1Curves
255000056 / 280
Estimated T-Level: 21.0 ⓘ
TF below 2^65 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Horng-Ming Chen232A6989C5F6CAD40
Verified (Factored)1999-05-16Jiri Hradecky232A6989C5F6CAD42046268
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-27Oliver Kruse4A556F1B16D8881E1170580253
Verified2017-12-10kkmrkkblmbrbk4A556F1B16D8881E1288954853
History
DateUserTypeResult
2022-03-11LordJuliusNF
no factor from 2^66 to 2^67
2022-03-11LordJuliusNF
no factor from 2^65 to 2^66
2022-03-11LordJuliusNF
no factor from 2^64 to 2^65
2022-03-11LordJuliusNF
no factor from 2^62 to 2^63
2022-01-23JossNF-PM1
B1=1000000, B2=119912100
2021-03-20JossNF
no factor from 2^67 to 2^68
2020-12-20JossNF-PM1
B1=302834
2017-12-10kkmrkkblmbrbkC-PRP
M3028349/11381059392296743559 : 4A556F1B16D8881E
PRP: Verified
PRP without proof (not generated)
2017-10-27Oliver KruseC-PRP
M3028349/11381059392296743559 : 4A556F1B16D8881E
PRP: Verified
PRP without proof (not generated)
2010-10-12markrF
Factor: 11381059392296743559
2010-10-09Sid & AndyNF
no factor from 2^61 to 2^62
2009-01-30Jayson KingNF
no factor from 2^60 to 2^61