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
1352917Factored
FactorDigitsBitsDate
1530977816289471015112167.12009-04-30 02:20:57
ECM
DigitsB1Curves
2550000280 / 280
30250000105 / 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)Georg Fischer528F97351114CF8C0
Verified (Factored)Cornelius Caesar528F97351114CF8C0
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30Oliver Kruse764EE8209223E7FF1013
Verified2017-10-24kkmrkkblmbrbk764EE8209223E7FF177793713
History
DateUserTypeResult
2022-03-07LordJuliusNF
no factor from 2^58 to 2^60
2017-10-24kkmrkkblmbrbkC-PRP
M1352917/153097781628947101511 : 764EE8209223E7FF
PRP: Verified
PRP without proof (not generated)
2017-09-30Oliver KruseC-PRP
M1352917/153097781628947101511 : 764EE8209223E7FF
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-04-30SubPrimeF-ECM
Factor: 153097781628947101511
2009-02-21Sturle SundeNF
no factor from 2^60 to 2^61