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
2078357Factored
FactorDigitsBitsDate
47559126365291342.1old
260329146995642171754.52014-11-28 12:14:48
3200648748632441379672168.12021-09-05 12:31:10
ECM
DigitsB1Curves
255000098 / 280
Estimated T-Level: 21.8
TF below 2^67 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified (Factored)2017-10-06Oliver Kruse1EC239E66F93B1282013
Verified (Factored)2017-11-16kkmrkkblmbrbk1EC239E66F93B128262754213
Verified2021-09-07_p95holder_2299BA758395746A3106149453
Verified2021-09-11LaurV2299BA758395746A3187695053
History
DateUserTypeResult
2021-09-11curtiscCERT
PRP Certification
Proof certified good
2021-09-11LaurVC-PRP
M2078357/4755912636529/26032914699564217/320064874863244137967 : 2299BA758395746A
PRP proof power = 7
PRP: Verified
Proof certified good
2021-09-07_p95holder_C-PRP
M2078357/4755912636529/26032914699564217/320064874863244137967 : 2299BA758395746A
PRP: Verified
PRP without proof (not generated)
2021-09-05_p95holder_F-ECM
Factor: 320064874863244137967 / (ECM curve 3, B1=50000, B2=5000000)
2017-11-16kkmrkkblmbrbkC-PRP
M2078357/4755912636529/26032914699564217 : 1EC239E66F93B128
PRP: Verified
PRP without proof (not generated)
2017-10-06Oliver KruseC-PRP
M2078357/4755912636529/26032914699564217 : 1EC239E66F93B128
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2014-11-28TJAOIF
Factor: 26032914699564217 / TF: 54-55