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
1945003Factored
FactorDigitsBitsDate
104563361291133.3old
666167723389677993689772375.82020-11-08 01:06:30
ECM
DigitsB1Curves
2550000280 / 280
3025000056 / 640
Estimated T-Level: 25.4
TF below 2^80 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-05Oliver KruseA31E402849D930841013
Verified (Factored)2017-11-11kkmrkkblmbrbkA31E402849D930841145180613
Verified2020-11-08Ethan O'ConnorD552FCB5A9A26AC82172576753
Verified2020-11-08riccardo ubertiD552FCB5A9A26AC8263034253
History
DateUserTypeResult
2020-11-08Ben DeloCERT
PRP Certification
Proof certified good
2020-11-08curtiscCERT
PRP Certification
Proof certified good
2020-11-08riccardo ubertiC-PRP
M1945003/10456336129/66616772338967799368977 : D552FCB5A9A26AC8
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-08Ethan O'ConnorC-PRP
M1945003/10456336129/66616772338967799368977 : D552FCB5A9A26AC8
PRP proof power = 7
PRP: Verified
Proof certified good
2020-11-08nordiF-ECM
Factor: 66616772338967799368977 / (ECM curve 5, B1=50000, B2=5000000, Sigma=5200766256861531)
2017-11-11kkmrkkblmbrbkC-PRP
M1945003/10456336129 : A31E402849D93084
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1945003/10456336129 : A31E402849D93084
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12