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

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MnStatusDetails
1779647Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
46591158471032.1old
74190639054666821750172272.72020-03-19 20:24:01
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-09-02KrieselE6B62492ADDC4603013
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-03Oliver KruseD7ABC6B40ED2E1621013
Verified (Factored)2017-11-04kkmrkkblmbrbkD7ABC6B40ED2E162196582913
Verified2020-03-20mrhE6B62492ADDC4603291422553
Verified2020-03-20ATHE6B62492ADDC46032158823653
Verified2020-03-20Jinyuan WangE6B62492ADDC4603280734453
Verified2020-03-20Gabriel LignelliE6B62492ADDC4603289787853
History
DateUserTypeResult
2025-09-03carel van der westhuizenCERT
PRP Certification
CERT proof power = 6
Proof certified good
2025-09-02KrieselC-PRP
E6B62492ADDC4603
PRP proof power = 6
PRP: Verified (Factored)
Proof certified good
2020-03-20Gabriel LignelliC-PRP
M1779647/4659115847/7419063905466682175017 : E6B62492ADDC4603
PRP: Verified
PRP without proof (not generated)
2020-03-20Jinyuan WangC-PRP
M1779647/4659115847/7419063905466682175017 : E6B62492ADDC4603
PRP: Verified
PRP without proof (not generated)
2020-03-20ATHC-PRP
M1779647/4659115847/7419063905466682175017 : E6B62492ADDC4603
PRP: Verified
PRP without proof (not generated)
2020-03-20mrhC-PRP
M1779647/4659115847/7419063905466682175017 : E6B62492ADDC4603
PRP: Verified
PRP without proof (not generated)
2020-03-19Niels_Mache_NextcloudF-ECM
Factor: 7419063905466682175017 / (ECM curve 3, B1=50000, B2=5000000, Sigma=8487480493428333)
2017-11-04kkmrkkblmbrbkC-PRP
M1779647/4659115847 : D7ABC6B40ED2E162
PRP: Verified
PRP without proof (not generated)
2017-10-03Oliver KruseC-PRP
M1779647/4659115847 : D7ABC6B40ED2E162
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12