Marin Mersenne 2^P-1
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MnStatusDetails
994237Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
163512217031133.9old
1455846663585591547.02008-08-26 19:52:46
ECM
DigitsB1Curves
2550000280 / 280
30250000100 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-28Oliver Kruse240B436DFE302B462013
Verified2017-10-15Oliver Kruse240B436DFE302B46255816713
Verified2017-12-24ATH240B436DFE302B46258314813
Verified2020-04-25Oliver KruseBD3B5E64B54B0793245367453
Verified2025-06-02kkmrkkblmbrbkBD3B5E64B54B0793240432353
History
DateUserTypeResult
2025-06-02V0rtex762CERT
PRP Certification
Proof certified good
2025-06-02kkmrkkblmbrbkC-PRP
M994237/16351221703/145584666358559 : BD3B5E64B54B0793
PRP proof power = 6
PRP: Verified
Proof certified good
2020-04-25Oliver KruseC-PRP
M994237/16351221703/145584666358559 : BD3B5E64B54B0793
PRP: Verified
PRP without proof (small exponent)
2017-12-24ATHC-PRP
M994237/16351221703/145584666358559 : 240B436DFE302B46
PRP: Verified
PRP without proof (small exponent)
2017-10-15Oliver KruseC-PRP
M994237/16351221703/145584666358559 : 240B436DFE302B46
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M994237/16351221703/145584666358559 : 240B436DFE302B46
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=2000000, B2=50000000, E=12
2008-08-26-Anonymous-F
Factor: 145584666358559