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
1598873Factored
FactorDigitsBitsDate
1164046506990896573512166.72010-03-28 05:08:34
ECM
DigitsB1Curves
2550000280 / 280
30250000107 / 640
Estimated T-Level: 25.8
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Donald Strom1A8290DA9FB31D8D0
Verified (Factored)1998-12-06Bruce Mitchell1A8290DA9FB31D8D1539974
PRP Cofactor
StatusDateUserResidueNumber of
known factors
ShiftTypeBase
Verified2017-10-02Oliver KruseDBE7D4AFE7995E8B1013
Verified2017-10-31kkmrkkblmbrbkDBE7D4AFE7995E8B1126388613
History
DateUserTypeResult
2017-10-31kkmrkkblmbrbkC-PRP
M1598873/116404650699089657351 : DBE7D4AFE7995E8B
PRP: Verified
PRP without proof (not generated)
2017-10-02Oliver KruseC-PRP
M1598873/116404650699089657351 : DBE7D4AFE7995E8B
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2010-03-28SubPrimeF-ECM
Factor: 116404650699089657351