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Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

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Exponent Range:










MnStatusDetails
486071Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
323723287928.3old
738628173983271446.12008-08-26 20:13:31
ECM
DigitsB1Curves
2550000280 / 280
30250000200 / 640
Estimated T-Level: 26.6
TF below 2^83 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-26Oliver Kruse269FBD6AC44BDE7E2013
Verified2017-09-27Oliver Kruse269FBD6AC44BDE7E2013
Verified2017-11-09kkmrkkblmbrbk269FBD6AC44BDE7E214716313
Verified2020-04-18Oliver Kruse8A753F105A139414231811553
Verified2024-11-27kkmrkkblmbrbk8A753F105A139414219540953
History
DateUserTypeResult
2024-11-27Wentao HuangCERT
PRP Certification
Proof certified good
2024-11-27kkmrkkblmbrbkC-PRP
M486071/323723287/73862817398327 : 8A753F105A139414
PRP proof power = 6
PRP: Verified
Proof certified good
2024-08-22cramsey87NF-PM1
B1=7000000, B2=42834594660
2020-04-18Oliver KruseC-PRP
M486071/323723287/73862817398327 : 8A753F105A139414
PRP: Verified
PRP without proof (small exponent)
2017-11-09kkmrkkblmbrbkC-PRP
M486071/323723287/73862817398327 : 269FBD6AC44BDE7E
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M486071/323723287/73862817398327 : 269FBD6AC44BDE7E
PRP: Verified
PRP without proof (not generated)
2017-09-26Oliver KruseC-PRP
M486071/323723287/73862817398327 : 269FBD6AC44BDE7E
PRP: Verified
PRP without proof (not generated)
2008-08-26-Anonymous-F
Factor: 73862817398327