is 2 27315241 - 1
has 8222707 decimal digits
takes 25.286 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
Actual2671.087862.6866%----1.087862.6866%0.0000%
PrimeNet2660.540762.1212%12000045000000.48145.2168%1.022064.0973%1.9761%
GPU722708.747964.2857%20000060000000.69263.9072%9.440565.6811%1.3954%
Difference-3-7.6601-1.5991%-200000-6000000-0.6926-3.9072%-8.3527-2.9946%-2.9946%

Known prime factors (2 factors, 89.6 bits, 0.00032785% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2731524117431494196571340.66531908
22 × 3 × 2659
-426591.022e-80.00020.0004
273152415209560031995911548.8889535995
33 × 5 × 7 × 10091
2008-10-0127100911.466e-60.00080.0014

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
273152419081041546441972867897602872789.553
P-1 results:
No P-1 results for M27315241


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-10-01T01:54:00markrManual testing??48.888159.35981e-852.071.92761e-7


ECM factoring results:
No ECM results for M27315241


Lucas-Lehmer results:
No L-L results for M27315241


PRP results:
No PRP results for M27315241


P-1 factor-bounds graph:
100
101
102
100
101
102
103
104
105
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2008-10-01T01:54:12+00:00