Marin Mersenne 2^P-1
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MnStatusDetails
803359Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
199769837919707809432064.1old
ECM
DigitsB1Curves
2550000280 / 280
30250000118 / 640
Estimated T-Level: 25.9
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 Kruse61138A33B1A2FD611013
Verified2017-10-13Oliver Kruse61138A33B1A2FD61112530913
Verified2017-12-18ATH61138A33B1A2FD61152347513
Verified2020-04-21Oliver Kruse344BAC13D106215A12055653
Verified2025-04-20kkmrkkblmbrbk344BAC13D106215A11159053
History
DateUserTypeResult
2025-04-20MarvinistCERT
PRP Certification
Proof certified good
2025-04-20kkmrkkblmbrbkC-PRP
M803359/19976983791970780943 : 344BAC13D106215A
PRP proof power = 6
PRP: Verified
Proof certified good
2021-09-13gLaussNF-PM1
B1=10000000, B2=830000000
2021-09-13gLaussNF-PP1
Start=2/7, B1=5000000, B2=365000000
2020-04-21Oliver KruseC-PRP
M803359/19976983791970780943 : 344BAC13D106215A
PRP: Verified
PRP without proof (small exponent)
2017-12-18ATHC-PRP
M803359/19976983791970780943 : 61138A33B1A2FD61
PRP: Verified
PRP without proof (small exponent)
2017-10-13Oliver KruseC-PRP
M803359/19976983791970780943 : 61138A33B1A2FD61
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M803359/19976983791970780943 : 61138A33B1A2FD61
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=300000, B2=10000000, E=12