is 2 47331673 - 1
has 14248254 decimal digits
takes 82.173 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
Actual2681.259361.7647 %----1.259361.7647 %
Target27220.204963.8889 %340000550000008.35274.1578 %28.557665.3903 %
Difference-4-18.9456-2.1242 %-340000-55000000-8.3527-4.1578 %-27.2983-3.6256 %

Known prime factors (1 factor, 68.9 bits, 0.00014548% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
473316735350811674768398180412168.8585652464127740
22 × 5 × 719 × 1381 × 284633
2008-11-1513812846332.42940.04230.0729

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2008-11-15lindedLKAH8932168.8581.3410.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-03-03ANONYMOUSv4_computers2642681.184


ECM factoring results:
No ECM results for M47331673


Lucas-Lehmer results:
No L-L results for M47331673


PRP results:
No PRP results for M47331673


CERT results:
No CERT results for M47331673


P-1 factor-bounds graph:
102
103
104
102
103
104
105
106
TF factor-bounds graph:
268
this exponent TF target: 72
TF double-checked to: 67
250
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Last modified: 2024-03-13T02:15:48+00:00