is 2 10804601 - 1
has 3252509 decimal digits
takes 3.530 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L90CC10915C995512double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.750164.1791 %13000021125000.11273.5673 %2.862965.4569 %
Target2685.516664.7059 %7000085000000.25072.7168 %5.767365.6648 %
Difference-1-2.7665-0.5268 %+60000-6387500-0.1380+0.8504%-2.9045-0.2078 %

Known prime factors (1 factor, 68.1 bits, 0.00063066% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
108046013252819584171803855212168.14015052937096760
23 × 3 × 5 × 29 × 4325556637
2017-07-272943255566375.5166111.63208.49

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2000-08-10Simon_Pinchesv4_computers1300002112500--0.1133.190%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-29ANONYMOUSv4_computers212640.182
2013-09-16BloodIceManual testing2642650.346
2015-05-18ThaManual testing2652660.692
2015-12-02VictordeHollanderManual testing2662671.383


ECM factoring results:
Total ECM effort:1.011 GHz-days
Estimated T-Level:0.385
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.514
50000500000010.497


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-11-15Simon_Pinchesv4_computers90CC10915C9955123.530
2004-04-09ANONYMOUSv4_computers90CC10915C9955123.530
2005-11-01ANONYMOUSv4_computers90CC10915C9955123.530
2005-11-13ANONYMOUSv4_computers90CC10915C9955123.530


PRP results:
dateuseridcompidcofactorsres64
2021-02-12LaurVbutu
325281958417180385521
CEB13B3A359FA808


CERT results:
dateuseridcompid
2021-02-12curtisccot201--00l


P-1 factor-bounds graph:
B1 = 130000, B2 = 2112500 (P-1 stage 2)
B1 = 130000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
266
265
264
this exponent TF target: 68
TF double-checked to: 67
ECM T-Level=0.38 ~= -15-bit
250
260
270
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Last modified: 2024-02-09T03:30:02+00:00