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:





MnDetails
2263753
Composite, with 2 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 262
Factored
FactorDigitsBitsDate
45007574945531342.0old
669829201968165876021158892685.82016-04-19 17:56:25
P-1 factors
DateFactorsB1B2
2016-04-1966982920196816587602115889
50000015000000
ECM
DigitsB1Curves
2550000280 / 280
30250000143 / 640
Estimated T-Level: 26.1 ⓘ
TF below 2^82 is very unlikely to find new factors due to ECM effort.
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors		ShiftTypeBase
Factored
PRP without proof (not generated)
2017-10-11Oliver Kruse51FBCEE486B8ABC41013
Verified
PRP without proof (not generated)
2017-10-18Oliver Kruse50431627B75EC0CE2178652553
Verified
PRP without proof (not generated)
2017-11-21storm551050431627B75EC0CE2184483353
History
DateUserTypeResult
2017-11-21storm5510C-PRPM2263753/4500757494553/66982920196816587602115889 : 50431627B75EC0CE
2017-10-18Oliver KruseC-PRPM2263753/4500757494553/66982920196816587602115889 : 50431627B75EC0CE
2017-10-11Oliver KruseC-PRPM2263753/known_factors : 51FBCEE486B8ABC4
2016-04-19alpertronF-PM1Factor: 66982920196816587602115889 / B1=500000, B2=15000000