Marin Mersenne 2^P-1
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MnStatusDetails
2930747Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
3245672795371999492072168.12017-05-25 02:49:18
ECM
DigitsB1Curves
2550000110 / 280
Estimated T-Level: 22.0 ⓘ
TF below 2^68 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)David Underbakke050F198B1CFCB1230
Verified (Factored)1999-05-09john nowlin050F198B1CFCB123928033
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-25Oliver Kruse9819A70566BBDDE9151535653
Verified2017-12-09kkmrkkblmbrbk9819A70566BBDDE91157851353
History
DateUserTypeResult
2017-12-09kkmrkkblmbrbkC-PRP
M2930747/324567279537199949207 : 9819A70566BBDDE9
PRP: Verified
PRP without proof (not generated)
2017-10-25Oliver KruseC-PRP
M2930747/324567279537199949207 : 9819A70566BBDDE9
PRP: Verified
PRP without proof (not generated)
2017-05-25alexF-ECM
Factor: 324567279537199949207 / (ECM curve 3, B1=50000, B2=5000000)
2016-02-23Mark RoseNF
no factor from 2^1 to 2^60
2016-02-22ramgeisNF
no factor from 2^65 to 2^66
2015-04-29VictordeHollanderNF-PM1
B1=1000000, B2=20000000, E=12
2015-04-25VictordeHollanderNF
no factor from 2^64 to 2^65
2015-04-25VictordeHollanderNF
no factor from 2^63 to 2^64
2013-01-10dbaughNF
no factor from 2^62 to 2^63
2011-12-18Sebastian HornbostelNF
no factor from 2^61 to 2^62
2010-11-10markrNF-PM1
B1=105000, B2=2283750, E=6
2009-02-14Sturle SundeNF
no factor from 2^60 to 2^61