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

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MnStatusDetails
2899991Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
23199929824.5old
92460193804362825609659918412892.92023-02-02 11:38:45
ECM
DigitsB1Curves
255000090 / 280
Estimated T-Level: 21.6 ⓘ
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified (Factored)2017-10-24Oliver KruseF0FDDCB18EAF8DA61197965253
Verified (Factored)2017-12-08kkmrkkblmbrbkF0FDDCB18EAF8DA61159836553
Verified2023-02-02LordJuliusF0FDDCB18EAF8DA6275148953
P-1 factors
DateFactorB1B2
2023-02-029246019380436282560965991841360000282695490
History
DateUserTypeResult
2023-02-02iwesCERT
PRP Certification
Proof certified good
2023-02-02LordJuliusC-PRP
M2899991/23199929/9246019380436282560965991841 : F0FDDCB18EAF8DA6
PRP proof power = 7
PRP: Verified
Proof certified good
2023-02-02USAFSSF-PM1
Factor: 9246019380436282560965991841 / (P-1, B1=360000, B2=282695490)
2017-12-08kkmrkkblmbrbkC-PRP
M2899991/23199929 : F0FDDCB18EAF8DA6
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-24Oliver KruseC-PRP
M2899991/23199929 : F0FDDCB18EAF8DA6
PRP: Verified (Factored)
PRP without proof (not generated)