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

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MnStatusDetails
506459Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
1012919720.0old
ECM
DigitsB1Curves
2550000280 / 280
30250000218 / 640
Estimated T-Level: 26.7
TF below 2^84 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-27Oliver Kruse040CF659DE42BA981013
Verified2017-09-28Oliver Kruse040CF659DE42BA981013
Verified2017-11-09kkmrkkblmbrbk040CF659DE42BA98111886113
Verified2020-04-19Oliver Kruse3876777FFC99370519789853
Verified2022-05-12Jorge Coveiro3876777FFC993705124839653
Verified2025-01-02kkmrkkblmbrbk3876777FFC993705138836253
History
DateUserTypeResult
2025-01-02Torchwood InstituteCERT
PRP Certification
Proof certified good
2025-01-02kkmrkkblmbrbkC-PRP
M506459/1012919 : 3876777FFC993705
PRP proof power = 6
PRP: Verified
Proof certified good
2022-05-12Jorge CoveiroC-PRP
M506459/1012919 : 3876777FFC993705
PRP proof power = 6
PRP: Verified
PRP proof never uploaded
2021-05-25gLaussNF-PP1
Start=2/7, B1=5000000, B2=360000000
2021-05-20gLaussNF-PM1
B1=10000000, B2=810000000
2020-04-19Oliver KruseC-PRP
M506459/1012919 : 3876777FFC993705
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M506459/1012919 : 040CF659DE42BA98
PRP: Verified
PRP without proof (small exponent)
2017-09-28Oliver KruseC-PRP
M506459/1012919 : 040CF659DE42BA98
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M506459/1012919 : 040CF659DE42BA98
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=1500000, B2=50000000, E=12