Marin Mersenne 2^P-1
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MnStatusDetails
341993Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2583831967417528695832167.82008-11-13 19:23:43
ECM
DigitsB1Curves
2550000280 / 280
30250000472 / 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 Slowinski3BD70
Verified (Factored)Unknown3BD70
Verified (Factored)Guillermo Ballester Valor36304EE097C5BBD70
Verified (Factored)Eivind Triel36304EE097C5BBD7270011
Verified (Factored)2002-01-22Dennis Pope36304EE097C5BBD798836
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-23Oliver KruseB125155276E51E721013
Verified2017-10-13Oliver KruseB125155276E51E7211028213
Verified2017-12-13ATHB125155276E51E72120874813
Verified2020-04-18Oliver KruseF433A5DDF7CA5475121997753
Verified2024-09-12kkmrkkblmbrbkF433A5DDF7CA5475124826153
History
DateUserTypeResult
2024-09-13yuriy_5-1NF-PM1
B1=12000002, B2=1730927578380
2024-09-12StephenCLippCERT
PRP Certification
Proof certified good
2024-09-12kkmrkkblmbrbkC-PRP
M341993/258383196741752869583 : F433A5DDF7CA5475
PRP proof power = 5
PRP: Verified
Proof certified good
2024-02-16Denial140NF-PM1
B1=1000000, B2=8866035360
2022-03-07LordJuliusNF
no factor from 2^54 to 2^55
2020-04-18Oliver KruseC-PRP
M341993/258383196741752869583 : F433A5DDF7CA5475
PRP: Verified
PRP without proof (small exponent)
2017-12-13ATHC-PRP
M341993/258383196741752869583 : B125155276E51E72
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M341993/258383196741752869583 : B125155276E51E72
PRP: Verified
PRP without proof (small exponent)
2017-09-23Oliver KruseC-PRP
M341993/258383196741752869583 : B125155276E51E72
PRP: Verified
PRP without proof (not generated)
2017-09-22Oliver KruseC-PRP
M341993/258383196741752869583 : B125155276E51E72
PRP without proof (not generated)
2008-11-13Jayson KingF-ECM
Factor: 258383196741752869583