is 2 6343993 - 1
has 1909733 decimal digits
takes 1.124 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LAF4E038DAE2DAC0Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2674.683865.6716 %300004200000.01321.6304 %4.697066.2313 %
Target2662.327965.1515 %4500050000000.08092.5690 %2.408966.0468 %
Difference+1+2.3558+0.5201 %-15000-4580000-0.0678-0.9386 %+2.2881+0.1846 %

Known prime factors (1 factor, 80.7 bits, 0.00127265% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
634399320150557577257748259101532580.737158816045172636132
22 × 3 × 19 × 18341 × 20641 × 1839949
2013-05-0820641183994955,7420.03080.0481

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2001-05-06ANONYMOUSv4_computers30000420000--0.0131.870%
2013-05-08Squeeky_SquirrelT7500_22002580.7370.0620.000%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-07-05ANONYMOUSv4_computers212620.048


ECM factoring results:
Total ECM effort:0.808 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.808


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-12-21Stephan Gruppv4_computersAF4E038DAE2DAC0E1.124
2001-06-03ANONYMOUSv4_computersAF4E038DAE2DAC0E1.124


PRP results:
dateuseridcompidcofactorsres64
2017-10-29kkmrkkblmbrbkc4.xlarge
2015055757725774825910153
34E06A15E51E9EFD
2018-09-27rucio
2015055757725774825910153
34E06A15E51E9EFD


CERT results:
No CERT results for M6343993


P-1 factor-bounds graph:
B1 = 30000, B2 = 420000 (P-1 stage 2)
B1 = 30000 (P-1 stage 1)
103
104
105
103
104
105
106
107
TF factor-bounds graph:
262
this exponent TF target: 66
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
290
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Last modified: 2024-03-13T02:15:48+00:00