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
1742809Factored
FactorDigitsBitsDate
570065763459506445132065.62008-07-20 13:48:33
ECM
DigitsB1Curves
2550000280 / 280
30250000108 / 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)Halfdan Ingvarsson3D44780C1F5278590
Verified (Factored)1999-03-26Nathan Stohs3D44780C1F5278591297072
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-09-30alpertronE934B77E343525EC1013
Verified2017-10-19Oliver KruseE934B77E343525EC1123109313
History
DateUserTypeResult
2017-10-19Oliver KruseC-PRP
M1742809/57006576345950644513 : E934B77E343525EC
PRP: Verified
PRP without proof (not generated)
2017-09-30alpertronC-PRP
M1742809/57006576345950644513 : E934B77E343525EC
PRP: Verified
PRP without proof (not generated)
2016-03-16alpertronNF-PM1
B1=500000, B2=15000000, E=12
2008-07-20James HeinrichF-ECM
Factor: 57006576345950644513