Marin Mersenne 2^P-1
Username
Password
Forgot password?
White
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
152377Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
883786601929.7old
ECM
DigitsB1Curves
2550000280 / 280
30250000640 / 640
351000000179 / 1566
Estimated T-Level: 30.6
TF below 2^97 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-22Oliver KruseF196D8856FB06D8D1013
Verified2017-10-11kkmrkkblmbrbkF196D8856FB06D8D12620913
Verified2020-04-17Oliver Kruse3B79B46AE64460E5115019253
Verified2024-02-03Wentao Huang3B79B46AE64460E5113557653
History
DateUserTypeResult
2024-02-03George WoltmanCERT
PRP Certification
Proof certified good
2024-02-03Wentao HuangC-PRP
M152377/883786601 : 3B79B46AE64460E5
PRP proof power = 5
PRP: Verified
Proof certified good
2020-04-17Oliver KruseC-PRP
M152377/883786601 : 3B79B46AE64460E5
PRP: Verified
PRP without proof (small exponent)
2017-10-11kkmrkkblmbrbkC-PRP
M152377/883786601 : F196D8856FB06D8D
PRP: Verified
PRP without proof (small exponent)
2017-09-22Oliver KruseC-PRP
M152377/883786601 : F196D8856FB06D8D
PRP: Verified
PRP without proof (not generated)
2017-09-21Oliver KruseC-PRP
M152377/883786601 : F196D8856FB06D8D
PRP without proof (not generated)
2016-11-18kkmrkkblmbrbkNF-PM1
B1=100000000, B2=2000000000, E=12