Marin Mersenne 2^P-1
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MnStatusDetails
3151469Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
8204526594299521618555512479.42011-09-07 08:53:50
ECM
DigitsB1Curves
25500006 / 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)1998-03-23Chris Frederick36FE132D998D08370
Verified (Factored)1999-10-21Edwin W Gustafson36FE132D998D08372274013
Verified (Factored)1999-10-29Sam Robertson36FE132D998D08372464564
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-31Oliver Kruse0BE3732F99B672D91224484353
Verified2017-12-12kkmrkkblmbrbk0BE3732F99B672D9126815753
History
DateUserTypeResult
2022-09-07JossNF-PM1
B1=1065146, B2=226749600
2022-03-24LordJuliusNF
no factor from 2^66 to 2^67
2022-03-24LordJuliusNF
no factor from 2^65 to 2^66
2022-01-24JossNF-PM1
B1=1065146, B2=119912100
2021-07-05JossNF
no factor from 2^67 to 2^68
2021-01-12JossNF
no factor from 2^64 to 2^65
2021-01-07JossNF
no factor from 2^63 to 2^64
2021-01-06JossNF
no factor from 2^62 to 2^63
2021-01-05JossNF-PM1
B1=315146, B2=3151469, E=6
2021-01-04JossNF
no factor from 2^61 to 2^62
2017-12-12kkmrkkblmbrbkC-PRP
M3151469/820452659429952161855551 : 0BE3732F99B672D9
PRP: Verified
PRP without proof (not generated)
2017-10-31Oliver KruseC-PRP
M3151469/820452659429952161855551 : 0BE3732F99B672D9
PRP: Verified
PRP without proof (not generated)
2011-09-07Squeeky_SquirrelF-PM1
Factor: 820452659429952161855551
2009-07-03Carsten KossendeyNF-PM1
B1=15000, B2=183750
2009-04-11S485122NF
no factor from 2^60 to 2^61