Marin Mersenne 2^P-1
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MnStatusDetails
2350741Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
4752862458937693479672168.72016-12-27 07:11:33
ECM
DigitsB1Curves
2550000107 / 280
Estimated T-Level: 21.9 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Bob DevineC63B48AC2D5C2EA70
Verified (Factored)Michael CederbergC63B48AC2D5C2EA70
Verified (Factored)1999-03-15Stephen WoodC63B48AC2D5C2EA7365839
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-12Oliver Kruse61678AE84F915FB11013
Verified2017-11-24storm551061678AE84F915FB11132333413
History
DateUserTypeResult
2018-04-27alpertronNF-PM1
B1=2000000, B2=60000000, E=12
2017-11-24storm5510C-PRP
M2350741/475286245893769347967 : 61678AE84F915FB1
PRP: Verified
PRP without proof (not generated)
2017-10-12Oliver KruseC-PRP
M2350741/475286245893769347967 : 61678AE84F915FB1
PRP: Verified
PRP without proof (not generated)
2016-12-27bamF-ECM
Factor: 475286245893769347967 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2015-10-27ramgeisNF
no factor from 2^65 to 2^66
2015-03-06VictordeHollanderNF
no factor from 2^64 to 2^65
2015-03-06VictordeHollanderNF
no factor from 2^63 to 2^64
2012-06-03Richard B. WoodsNF
no factor from 2^62 to 2^63
2011-08-30Richard B. WoodsNF
no factor from 2^61 to 2^62
2010-03-12BudNF-PM1
B1=250000, B2=25000000, E=12
2009-01-16Sturle SundeNF
no factor from 2^60 to 2^61