is 2 81309167 - 1
has 24476499 decimal digits
takes 253.724 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2670.365459.7015%----0.365459.7015%0.0000%
PrimeNet2715.879861.9718%340000160000005.39895.2572%11.278663.9710%1.9992%
GPU7227594.108864.0000%550000180000006.79033.8825%100.899165.3977%1.3977%
Difference-8-93.7434-4.2985%-550000-18000000-6.7903-3.8825%-100.5337-5.6962%-5.6962%

Known prime factors (1 factor, 36.6 bits, 0.00004501% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
813091671040757337611236.599640
27 × 5
2007-08-121281281.282e-100.00060.0012

P-1 results:
No P-1 results for M81309167


Trial Factoring results:
No TF results for M81309167


ECM factoring results:
No ECM results for M81309167


Lucas-Lehmer results:
No L-L results for M81309167


PRP results:
No PRP results for M81309167


P-1 factor-bounds graph:
101
102
103
101
102
103
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2007-08-12T03:31:50+00:00