Marin Mersenne 2^P-1
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MnStatusDetails
3397033Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
46005857541951895189512272.02014-11-10 13:09:57
ECM
DigitsB1Curves
25500007 / 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)Robert Friberg187171FE6F2E6AF60
Verified (Factored)1999-06-26cypherpunks187171FE6F2E6AF62312137
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-11-05kkmrkkblmbrbk1F532455573605A01290873453
Verified2017-11-21Oliver Kruse1F532455573605A01269050553
History
DateUserTypeResult
2022-09-05JossNF-PM1
B1=1132344, B2=213444000
2022-04-24LordJuliusNF
no factor from 2^66 to 2^67
2022-04-24LordJuliusNF
no factor from 2^65 to 2^66
2022-04-24LordJuliusNF
no factor from 2^64 to 2^65
2022-04-24LordJuliusNF
no factor from 2^63 to 2^64
2022-04-24LordJuliusNF
no factor from 2^62 to 2^63
2022-04-24LordJuliusNF
no factor from 2^1 to 2^62
2022-01-09JossNF-PM1
B1=1132344, B2=111642300
2021-07-09JossNF
no factor from 2^67 to 2^68
2021-03-14JossNF-PM1
B1=339703, B2=3736736, E=6
2017-11-21Oliver KruseC-PRP
M3397033/4600585754195189518951 : 1F532455573605A0
PRP: Verified
PRP without proof (not generated)
2017-11-05kkmrkkblmbrbkC-PRP
M3397033/4600585754195189518951 : 1F532455573605A0
PRP: Verified
PRP without proof (not generated)
2014-11-10joe b.F-ECM
Factor: 4600585754195189518951
2014-10-14JossNF-PM1
B1=97788
2014-07-04JossNF-PM1
B1=78894
2012-11-15GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-10-24USAFSSNF-PM1
B1=60000, B2=945000, E=6
2011-08-22Grant McCrackenNF
no factor from 2^61 to 2^62
2009-07-11Carsten KossendeyNF-PM1
B1=15000, B2=206250
2009-03-25S485122NF
no factor from 2^60 to 2^61