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
1399Factored
FactorDigitsBitsDate
28875361824.8old
432065107102034160950204222158362901782496069746151.6old
972983190105195866382945300468772327102619192378608029755608161202.62020-12-19 23:37:46
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-09-27Oliver KruseDAC8C51337782CB42013
Verified (Factored)2017-10-09Chang Chia-TcheDAC8C51337782CB42013
Verified (Factored)2017-10-12kkmrkkblmbrbkDAC8C51337782CB4247313
Verified (Factored)2020-04-17Oliver KruseCB9A0C7A82105618243753
Verified (Factored)2020-08-12_p95holder_CB9A0C7A821056182128853
Verified2020-12-20mikrPRP_PRP_PRP_PRP_327513
Verified2020-12-20Maciej KmieciakPRP_PRP_PRP_PRP_3113413
History
DateUserTypeResult
2020-12-20Maciej KmieciakP-PRP
M1399/28875361/4320651071020341609502042221583629017824960697/9729831901051958663829453004687723271026191923786080297556081 is a probable prime.
2020-12-20mikrP-PRP
M1399/28875361/4320651071020341609502042221583629017824960697/9729831901051958663829453004687723271026191923786080297556081 is a probable prime.
2020-12-19Ryan PropperF-ECM
Factor: 9729831901051958663829453004687723271026191923786080297556081 / (ECM curve 1, B1=850000000, B2=15892628251516, Sigma=16318523421442679557)
2020-08-12_p95holder_C-PRP
M1399/28875361/4320651071020341609502042221583629017824960697 : CB9A0C7A82105618
PRP: Verified
PRP without proof (small exponent)
2020-04-17Oliver KruseC-PRP
M1399/28875361/4320651071020341609502042221583629017824960697 : CB9A0C7A82105618
PRP: Verified
PRP without proof (small exponent)
2017-10-12kkmrkkblmbrbkC-PRP
M1399/28875361/4320651071020341609502042221583629017824960697 : DAC8C51337782CB4
PRP: Verified
PRP without proof (not generated)
2017-10-09Chang Chia-TcheC-PRP
M1399/known_factors : DAC8C51337782CB4
PRP: Verified
PRP without proof (not generated)
2017-09-27Oliver KruseC-PRP
M1399/28875361/4320651071020341609502042221583629017824960697 : DAC8C51337782CB4
PRP: Verified
PRP without proof (not generated)
2017-09-25csabaC-PRP
M1399/known_factors : DAC8C51337782CB4
PRP without proof (not generated)
2016-09-07kkmrkkblmbrbkNF-PM1
B1=1000000000, B2=100000000000, E=12