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
2007517Factored
FactorDigitsBitsDate
2447565517848480722172167.72009-09-05 07:40:13
ECM
DigitsB1Curves
2550000280 / 280
30250000116 / 640
Estimated T-Level: 25.9 ⓘ
TF below 2^81 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)Joel Armengaud1A8AF5558564583E0
Verified (Factored)Sturle Sunde1A8AF5558564583E0
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-05Oliver Kruse17161FE90E2356E71013
Verified2017-11-13ATH17161FE90E2356E71166652013
History
DateUserTypeResult
2022-03-09LordJuliusNF
no factor from 2^1 to 2^60
2017-11-13ATHC-PRP
M2007517/244756551784848072217 : 17161FE90E2356E7
PRP: Verified
PRP without proof (not generated)
2017-10-05Oliver KruseC-PRP
M2007517/244756551784848072217 : 17161FE90E2356E7
PRP: Verified
PRP without proof (not generated)
2016-03-17alpertronNF-PM1
B1=500000, B2=15000000, E=12
2009-09-05SubPrimeF-ECM
Factor: 244756551784848072217
2009-01-02Sturle SundeNF
no factor from 2^60 to 2^61