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
6095549Factored
FactorDigitsBitsDate
410662803533855699992065.22011-08-11 05:55:52
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0
TF below 2^62 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)1999-01-10Mark Dodrill1F1B0E2F9AB8B5A90
Verified (Factored)2000-12-14Sid McHarg1F1B0E2F9AB8B5A95489171
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-09-20kkmrkkblmbrbk9951C2E77D6ADB781013
Verified2018-09-17rucio9951C2E77D6ADB781373706513
History
DateUserTypeResult
2018-09-17rucioC-PRP
M6095549/41066280353385569999 : 9951C2E77D6ADB78
PRP: Verified
PRP without proof (not generated)
2017-09-20kkmrkkblmbrbkC-PRP
M6095549/41066280353385569999 : 9951C2E77D6ADB78
PRP: Verified
PRP without proof (not generated)
2011-08-11JimBaF-ECM
Factor: 41066280353385569999
2011-04-10markrNF-PM1
B1=115000, B2=2213750, E=6