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

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
2952787Composite, with 2 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
118111481926.8old
16409306196235916201866822972890.42025-05-18 01:49:28
ECM
DigitsB1Curves
255000079 / 280
Estimated T-Level: 21.4
TF below 2^66 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-26Oliver Kruse927DE1899CBEC2371179352853
Verified (Factored)2017-12-09kkmrkkblmbrbk927DE1899CBEC2371173394553
Verified2025-05-23Kyle Askine927DE1899CBEC237231507953
History
DateUserTypeResult
2025-05-23David BarinaCERT
PRP Certification
Proof certified good
2025-05-23Kyle AskineC-PRP
M2952787/118111481/1640930619623591620186682297 : 927DE1899CBEC237
PRP proof power = 7
PRP: Verified
Proof certified good
2025-05-18debrouxlF-ECM
Factor: 1640930619623591620186682297 / (ECM curve 1, B1=50000, B2=7000000, Sigma=1100863984227412)
2022-12-05USAFSSNF-PM1
B1=360000, B2=282695490
2017-12-09kkmrkkblmbrbkC-PRP
M2952787/118111481 : 927DE1899CBEC237
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-26Oliver KruseC-PRP
M2952787/118111481 : 927DE1899CBEC237
PRP: Verified (Factored)
PRP without proof (not generated)