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
2056319Factored
FactorDigitsBitsDate
497629199928.9old
7099235715611239.42008-07-15 07:49:49
2760043075426256171857.92015-07-28 11:51:16
160531282350176050112632373.82021-11-02 11:04:01
ECM
DigitsB1Curves
2550000143 / 280
Estimated T-Level: 22.6
TF below 2^70 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse34DB54D9B8609D431013
Verified (Factored)2017-10-17Oliver KruseF79D81807E49169F3155793453
Verified (Factored)2017-11-15kkmrkkblmbrbkF79D81807E49169F3132765953
Verified2021-11-02SRJ2877F79D81807E49169F4187499453
History
DateUserTypeResult
2021-11-02015H1CERT
PRP Certification
Proof certified good
2021-11-02SRJ2877C-PRP
M2056319/497629199/709923571561/276004307542625617/16053128235017605011263 : F79D81807E49169F
PRP proof power = 7
PRP: Verified
Proof certified good
2021-11-02_p95holder_F-ECM
Factor: 16053128235017605011263 / (ECM curve 5, B1=50000, B2=5000000)
2017-11-15kkmrkkblmbrbkC-PRP
M2056319/497629199/709923571561/276004307542625617 : F79D81807E49169F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-17Oliver KruseC-PRP
M2056319/497629199/709923571561/276004307542625617 : F79D81807E49169F
PRP: Verified (Factored)
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2056319/497629199/709923571561/276004307542625617 : 34DB54D9B8609D43
PRP: Verified (Factored)
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2015-07-28TJAOIF
Factor: 276004307542625617 / TF: 57-58
2008-07-15J FeitsmaF
Factor: 709923571561