is 2 19828453 - 1
has 5968960 decimal digits
takes 12.833 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
Actual2671.498562.6866 %----1.498562.6866 %
Target2696.021063.7681 %140000200000001.14683.6232 %7.167865.0809 %
Difference-2-4.5224-1.0815 %-140000-20000000-1.1468-3.6232 %-5.6693-2.3943 %

Known prime factors (2 factors, 72.8 bits, 0.00036714% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19828453317255249928.2418
23
-881.807e-127.508e-61.528e-5
19828453258971889820871444.558653031
32 × 72559
2008-09-089725591.594e-70.00370.0069

1 Composite Factors:
P-1 results:
No P-1 results for M19828453


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-08Will EdgingtonManual testing??
44.558
14


ECM factoring results:
No ECM results for M19828453


Lucas-Lehmer results:
No L-L results for M19828453


PRP results:
No PRP results for M19828453


CERT results:
No CERT results for M19828453


P-1 factor-bounds graph:
100
101
100
101
102
103
104
105
TF factor-bounds graph:
this exponent TF target: 69
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00