is 2 64148113 - 1
has 19310507 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%63.654266.1972%1.3323%
Difference-7-59.1779-3.6708%-400000-14000000-4.0131-3.7920%-63.1910-5.0032%-5.0032%

Known prime factors (2 factors, 90.9 bits, 0.00014178% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
6414811355735729461191342.34243443
33 × 1609
-2716091.282e-80.00040.0006
641481134287259588694891548.6073341688
23 × 3 × 7 × 19891
2008-09-118198917.652e-70.00380.0071

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
6414811323895354056539110243500631912890.949
P-1 results:
No P-1 results for M64148113


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1999-11-17T00:00:00ANONYMOUSv4_computers??48.607151.80678e-7320.43.72063e-7
2008-09-11T06:35:00Will EdgingtonManual testing??48.607151.80678e-7320.43.72063e-7


ECM factoring results:
No ECM results for M64148113


Lucas-Lehmer results:
No L-L results for M64148113


PRP results:
No PRP results for M64148113


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: 2008-09-11T06:35:20+00:00