Marin Mersenne 2^P-1
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MnStatusDetails
350249Factored
FactorDigitsBitsDate
178967226846874112255649833836931100.52019-03-07 08:01:25
ECM
DigitsB1Curves
2550000280 / 280
30250000470 / 640
Estimated T-Level: 28.7 ⓘ
TF below 2^90 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Slowinski49A00
Verified (Factored)Unknown49A00
Verified (Factored)Guillermo Ballester ValorA17B7679A268C9A00
Verified (Factored)Eivind TrielA17B7679A268C9A037646
Verified (Factored)2001-12-08Dennis PopeA17B7679A268C9A021252
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2019-03-07ANONYMOUSBD376E6D1128A788116435953
Verified2019-03-08artorolloBD376E6D1128A788114096053
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2019-03-08artorolloC-PRP
M350249/1789672268468741122556498338369 : BD376E6D1128A788
PRP: Verified
PRP without proof (small exponent)
2019-03-07ANONYMOUSC-PRP
M350249/1789672268468741122556498338369 : BD376E6D1128A788
PRP: Verified
PRP without proof (small exponent)
2019-03-07alexF-ECM
Factor: 1789672268468741122556498338369 / (ECM curve 220, B1=250000, B2=25000000, Sigma=7672294584377787)
2018-02-17Gordon SpenceNF
no factor from 2^64 to 2^65
2016-11-03mikrNF-PM1
B1=60000000, B2=3000000000, E=12
2015-12-16Gordon SpenceNF
no factor from 2^63 to 2^64
2015-12-16Gordon SpenceNF
no factor from 2^62 to 2^63
2015-07-25NRNF
no factor from 2^61 to 2^62
2013-05-28lycornNF
no factor from 2^60 to 2^61
2012-02-20alpertronNF-PM1
B1=10000000, B2=200000000, E=12
2011-08-14JossNF-PM1
B1=1294764
2009-01-27Sturle SundeNF
no factor from 2^59 to 2^60
2008-12-29Sturle SundeNF
no factor from 2^58 to 2^59