is 2 64148171 - 1
has 19310524 decimal digits
takes 155.604 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
Actual2670.463261.1940%----0.463261.1940%0.0000%
PrimeNet2703.725062.8571%280000120000003.23075.2151%6.955764.7942%1.9370%
GPU7227459.641164.8649%400000140000004.01313.7920%63.654166.1972%1.3323%
Difference-7-59.1779-3.6708%-400000-14000000-4.0131-3.7920%-63.1909-5.0032%-5.0032%

Known prime factors (2 factors, 85.9 bits, 0.00013397% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6414817126942231831031.32721
3 × 7
-374.480e-121.132e-52.147e-5
64148171275669571296604071754.614214869393
32 × 23874377
2014-12-039238743775.711e-54.57518.5449

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
64148171742715349834982054566154812685.941
P-1 results:
No P-1 results for M64148171


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2014-12-03T12:43:00TJAOIManual testing254255*54.614171.97015e-5320.44.05704e-5


ECM factoring results:
No ECM results for M64148171


Lucas-Lehmer results:
No L-L results for M64148171


PRP results:
No PRP results for M64148171


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
255
230
240
250
260
270
280
290
2100
Last modified: 2014-12-03T12:43:00+00:00