is 2 13284223 - 1
has 3998950 decimal digits
takes 5.894 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2672.236864.1791 %3000002101291507.54778.8887 %9.784567.3631 %
Target2684.486964.7059 %90000120000000.47543.1789 %4.962265.8279 %
Difference-1-2.2501-0.5268 %+210000+198129150+7.0723+5.7098%+4.8222+1.5353 %

Known prime factors (1 factor, 68.1 bits, 0.00051300% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
132842233271025241280464118072168.14812311692002161
47 × 79 × 38047 × 87151
2002-01-0238047871517.79970.02620.0498

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2002-01-02Stephen Woodv4_computers2168.148-0.000%
2022-06-21nordisweet16_30.8b14300000300000
skipped known factor: 327102524128046411807
--0.1781.920%
2022-06-23nordisweet16_30.8b14300000210129150
skipped known factor: 327102524128046411807
--8.5328.134%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2000-05-10ANONYMOUSv4_computers212640.148


ECM factoring results:
No ECM results for M13284223


Lucas-Lehmer results:
No L-L results for M13284223


PRP results:
dateuseridcompidcofactorsres64
2022-07-21Wentao HuangManual testing
327102524128046411807
E7EAC2AE77EB47E7


CERT results:
dateuseridcompid
2022-07-21Jason VK4FJGSMini_Tower


P-1 factor-bounds graph:
B1 = 300000, B2 = 210129150 (P-1 stage 2)
B1 = 300000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
TF factor-bounds graph:
264
this exponent TF target: 68
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00