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
122011Factored
FactorDigitsBitsDate
217657863131134.3old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000223 / 1566
Estimated T-Level: 30.7
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-21Oliver KruseF62ADB46FAB8BB591013
Verified2017-10-13kkmrkkblmbrbkF62ADB46FAB8BB59111840013
Verified2020-04-17Oliver Kruse51D6858068363FAC16079853
Verified2024-02-03Wentao Huang51D6858068363FAC13011753
History
DateUserTypeResult
2024-02-03Jon PaceCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M122011/21765786313 : 51D6858068363FAC
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M122011/21765786313 : 51D6858068363FAC
PRP: Verified
PRP without proof (small exponent)
2017-10-13kkmrkkblmbrbkC-PRP
M122011/21765786313 : F62ADB46FAB8BB59
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M122011/21765786313 : F62ADB46FAB8BB59
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M122011/21765786313 : F62ADB46FAB8BB59
PRP without proof (not generated)
2017-02-28kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12