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
163199Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
262458426065293671754.5old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000163 / 1566
Estimated T-Level: 30.5
TF below 2^96 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver Kruse9220FA59F5013E721013
Verified2017-10-12kkmrkkblmbrbk9220FA59F5013E72112119813
Verified2020-04-17Oliver Kruse843502B9D395D2FD110761153
Verified2024-02-03Wentao Huang843502B9D395D2FD19851453
History
DateUserTypeResult
2024-02-03Naegi MakotoCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M163199/26245842606529367 : 843502B9D395D2FD
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M163199/26245842606529367 : 843502B9D395D2FD
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M163199/26245842606529367 : 9220FA59F5013E72
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M163199/26245842606529367 : 9220FA59F5013E72
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M163199/26245842606529367 : 9220FA59F5013E72
PRP without proof (not generated)
2017-04-30kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12