Marin Mersenne 2^P-1
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Finding World Record Primes Since 1996

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MnStatusDetails
967721Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
546955909211135.7old
1011365217111236.62008-07-16 09:29:28
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 Kruse226B26C73117D7802013
Verified2017-10-15Oliver Kruse226B26C73117D780245587413
Verified2017-12-24ATH226B26C73117D78027127813
Verified2020-04-24Oliver KruseA14B29E9C2DD34BF292028053
Verified2025-05-28kkmrkkblmbrbkA14B29E9C2DD34BF296185553
History
DateUserTypeResult
2025-05-28ANONYMOUSCERT
PRP Certification
Proof certified good
2025-05-28kkmrkkblmbrbkC-PRP
M967721/54695590921/101136521711 : A14B29E9C2DD34BF
PRP proof power = 6
PRP: Verified
Proof certified good
2020-04-24Oliver KruseC-PRP
M967721/54695590921/101136521711 : A14B29E9C2DD34BF
PRP: Verified
PRP without proof (small exponent)
2017-12-24ATHC-PRP
M967721/54695590921/101136521711 : 226B26C73117D780
PRP: Verified
PRP without proof (small exponent)
2017-10-15Oliver KruseC-PRP
M967721/54695590921/101136521711 : 226B26C73117D780
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M967721/54695590921/101136521711 : 226B26C73117D780
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=200000, B2=5000000, E=6
2008-07-16J FeitsmaF
Factor: 101136521711