Marin Mersenne 2^P-1
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MnStatusDetails
3353191Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
180743064363824015112064.02012-02-04 14:18:40
ECM
DigitsB1Curves
25500005 / 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)Chris Martin473412F14EEC93160
Verified (Factored)1999-07-12Murray Henderson473412F14EEC9316676368
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-05Oliver Kruse64F052B3CE75E274110092653
Verified2017-12-15kkmrkkblmbrbk64F052B3CE75E274139176053
History
DateUserTypeResult
2022-09-06JossNF-PM1
B1=1117730, B2=226749600
2022-04-23LordJuliusNF
no factor from 2^66 to 2^67
2022-04-23LordJuliusNF
no factor from 2^65 to 2^66
2022-04-23LordJuliusNF
no factor from 2^64 to 2^65
2022-04-23LordJuliusNF
no factor from 2^62 to 2^63
2022-04-23LordJuliusNF
no factor from 2^1 to 2^62
2022-01-09JossNF-PM1
B1=1117730, B2=119912100
2021-05-14JossNF
no factor from 2^67 to 2^68
2021-03-10JossNF-PM1
B1=335319, B2=3688510, E=6
2017-12-15kkmrkkblmbrbkC-PRP
M3353191/18074306436382401511 : 64F052B3CE75E274
PRP: Verified
PRP without proof (not generated)
2017-11-05Oliver KruseC-PRP
M3353191/18074306436382401511 : 64F052B3CE75E274
PRP: Verified
PRP without proof (not generated)
2012-02-04C11MANF-ECM
Factor: 18074306436382401511
2011-10-11USAFSSNF-PM1
B1=55000, B2=907500, E=6
2011-08-19markrNF
no factor to 2^62
2009-07-05Carsten KossendeyNF-PM1
B1=15000, B2=206250
2009-03-28S485122NF
no factor from 2^60 to 2^61