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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
464201Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
2785207721.4old
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
Verified2017-09-25Oliver Kruse02482E7C316ADAED1013
Verified2017-09-27Oliver Kruse02482E7C316ADAED1013
Verified2017-11-07kkmrkkblmbrbk02482E7C316ADAED129937613
Verified2020-04-18Oliver Kruse75D56FDE7EB1D3D8141204353
Verified2024-11-15kkmrkkblmbrbk75D56FDE7EB1D3D8126166653
History
DateUserTypeResult
2024-11-15XyzzyCERT
PRP Certification
Proof certified good
2024-11-15kkmrkkblmbrbkC-PRP
M464201/2785207 : 75D56FDE7EB1D3D8
PRP proof power = 6
PRP: Verified
Proof certified good
2024-05-01USAFSSNF-PM1
B1=1800000, B2=7671489210
2020-04-18Oliver KruseC-PRP
M464201/2785207 : 75D56FDE7EB1D3D8
PRP: Verified
PRP without proof (small exponent)
2017-11-07kkmrkkblmbrbkC-PRP
M464201/2785207 : 02482E7C316ADAED
PRP: Verified
PRP without proof (small exponent)
2017-09-27Oliver KruseC-PRP
M464201/2785207 : 02482E7C316ADAED
PRP: Verified
PRP without proof (not generated)
2017-09-25Oliver KruseC-PRP
M464201/2785207 : 02482E7C316ADAED
PRP: Verified
PRP without proof (not generated)