is 2 2706929 - 1
has 814867 decimal digits
takes 0.209 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
Actual26710.977067.1642%----10.977067.1642%0.0000%
PrimeNet2590.028462.7119%120002200000.00262.8443%0.031063.7725%1.0606%
GPU722630.589665.0794%140002200000.00281.6621%0.592465.6598%0.5804%
Difference+4+10.3874+2.0848%-14000-220000-0.0028-1.6621%+10.3846+1.5044%+1.5044%

Known prime factors (2 factors, 133.8 bits, 0.00494392% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
27069294930025475378906311858.77491063073235
3 × 5 × 193 × 31455293
1998-02-08193314552930.02710.19190.3585
2706929392183207464220613715512375.0547244061581670975
34 × 52 × 316663 × 11296913
2018-04-10316663112969133,900.60.10250.1287

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
27069291933473203814418468621830992386129283868141133.828
P-1 results:
No P-1 results for M2706929


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-02-08T00:00:00ANONYMOUSv4_computers??58.774180.0130.4250.026


ECM factoring results:

Old Calculation Method

Total ECM effort:0.207 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.207 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.207


Lucas-Lehmer results:
No L-L results for M2706929


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-19T15:08:16Oliver KruseGTX-3
493002547537890631
E3829B338C5B80__no
2017-12-04T16:53:48kkmrkkblmbrbkc4.xlarge
493002547537890631
E3829B338C5B80__no
2018-04-10T21:45:45ATHec2-PRPCF
493002547537890631
39218320746422061371551
E3829B338C5B80__no


P-1 factor-bounds graph:
101
102
103
104
105
106
101
102
103
104
105
106
107
108
TF factor-bounds graph:
267
2
250
260
270
280
290
2100
Last modified: 2018-04-10T21:45:45+00:00