is 2 6959257 - 1
has 2094946 decimal digits
takes 1.518 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
Actual2674.269765.6716%----4.269765.6716%
Target2674.269765.6716%4500072000000.13752.2384%4.407266.4400%
Difference----45000-7200000-0.1375-2.2384%-0.1375-0.7684%

Known prime factors (1 factor, 43.5 bits, 0.00062475% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6959257122486820383931443.478880028
22 × 31 × 47 × 151		-471512.496e-71.665e-53.024e-5

P-1 results:
No P-1 results for M6959257


Trial Factoring results:
No TF results for M6959257


ECM factoring results:
No ECM results for M6959257


Lucas-Lehmer results:
No L-L results for M6959257


PRP results:
dateuseridcompidcofactorsres64PRP
2018-01-22ATHec2-1xd
12248682038393
5F46049CA986C5__no
2019-02-11kkmrkkblmbrbkc5.large
12248682038393
5F46049CA986C5BBno


P-1 factor-bounds graph:
100
101
102
100
101
102
103
TF factor-bounds graph:
this exponent TF target: 67
TF double-checked to: 67.8
250
260
270
Last modified: 2023-06-05T21:50:05+00:00