is 2 15754847 - 1
has 4742682 decimal digits
takes 8.615 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
Actual2671.886064.1791%----1.886064.1791%0.0000%
PrimeNet2650.463163.0769%7000022000000.14754.3088%0.610664.6679%1.5910%
GPU722697.577865.2174%11000028000000.20343.1181%7.781266.3019%1.0845%
Difference-2-5.6918-1.0383%-110000-2800000-0.2034-3.1181%-5.8952-2.1228%-1.0845%

Known prime factors (2 factors, 88.6 bits, 0.00056212% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1575484735539153668731341.693112788
22 × 32 × 13 × 241
-132412.627e-82.016e-52.098e-5
157548471285056069238731546.8694078288
24 × 37 × 832
2008-09-08688968891.039e-60.00550.0111

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
157548474566980511760936417770591292788.561
P-1 results:
No P-1 results for M15754847


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-09-08T11:39:00Will EdgingtonManual testing??46.869154.44073e-717.999.27447e-7


ECM factoring results:
No ECM results for M15754847


Lucas-Lehmer results:
No L-L results for M15754847


PRP results:
No PRP results for M15754847


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2008-09-08T11:39:12+00:00