is 2 6912953 - 1
has 2081007 decimal digits
takes 1.507 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.298365.6716%----4.298365.6716%
Target2674.298365.6716%450009000000.02902.2359%4.327366.4392%
Difference----45000-900000-0.0290-2.2359%-0.0290-0.7676%

Known prime factors (1 factor, 25.3 bits, 0.00036606% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
691295341477719825.3063
3		-136.470e-133.506e-76.435e-7

P-1 results:
No P-1 results for M6912953


Trial Factoring results:
No TF results for M6912953


ECM factoring results:
No ECM results for M6912953


Lucas-Lehmer results:
No L-L results for M6912953


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-23Oliver KruseGTX-5
41477719
F68A11C4BEA15C__no
2019-01-26Luigi MorelliCS50X-C9
41477719
F68A11C4BEA15C97no


P-1 factor-bounds graph:
100
101
100
101
102
TF factor-bounds graph:
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-04-26T21:34:10+00:00