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
1959949Factored
FactorDigitsBitsDate
9301761158091239.8old
1549893003748128911068224012787.02022-04-22 15:06:12
ECM
DigitsB1Curves
2550000280 / 280
3025000057 / 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 Kruse0023B32FEC64ECC91013
Verified (Factored)2017-11-11kkmrkkblmbrbk0023B32FEC64ECC912600513
Verified2022-04-22aperson182E45D7CD342919D2133503153
History
DateUserTypeResult
2022-04-22curtiscCERT
PRP Certification
Proof certified good
2022-04-22aperson1C-PRP
M1959949/930176115809/154989300374812891106822401 : 82E45D7CD342919D
PRP proof power = 7
PRP: Verified
Proof certified good
2022-04-22_p95holder_F-ECM
Factor: 154989300374812891106822401 / (ECM curve 4, B1=50000, B2=5000000)
2017-11-11kkmrkkblmbrbkC-PRP
M1959949/930176115809 : 0023B32FEC64ECC9
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M1959949/930176115809 : 0023B32FEC64ECC9
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12