is 2 81180551 - 1
has 24437781 decimal digits
takes 253.323 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
Actual2670.366059.7015%----0.366059.7015%0.0000%
PrimeNet2715.889161.9718%340000160000005.39895.2562%11.288063.9707%1.9988%
GPU7227594.257964.0000%550000180000006.79033.8817%101.048265.3974%1.3974%
Difference-8-93.8919-4.2985%-550000-18000000-6.7903-3.8817%-100.6822-5.6959%-5.6959%

Known prime factors (1 factor, 39.6 bits, 0.00004877% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
811805518286910646091239.5925104
24 × 11 × 29
2007-08-1116299.967e-107.560e-50.0001

P-1 results:
No P-1 results for M81180551


Trial Factoring results:
No TF results for M81180551


ECM factoring results:
No ECM results for M81180551


Lucas-Lehmer results:
No L-L results for M81180551


PRP results:
No PRP results for M81180551


P-1 factor-bounds graph:
100
101
102
100
101
102
TF factor-bounds graph:
267
230
240
250
260
270
280
290
2100
Last modified: 2007-08-11T23:57:08+00:00