is 2 47443477 - 1
has 14281910 decimal digits
takes 82.367 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
Actual2681.256361.7647 %----1.256361.7647 %
Target27220.157363.8889 %340000550000008.35274.1591 %28.510065.3908 %
Difference-4-18.9010-2.1242 %-340000-55000000-8.3527-4.1591 %-27.2537-3.6261 %

Known prime factors (1 factor, 110.3 bits, 0.00023251% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
47443477161165069148174862227527126404836134110.31216984955502752766436946340
22 × 33 × 5 × 31 × 443 × 1217 × 5639 × 466331 × 715679
2008-11-204663317156793.110e+91.20812.3891

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2008-11-20Helmut Zulussrv-evang34110.3122.1610.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-03-22RMAC9.5v4_computers212680.630


ECM factoring results:
No ECM results for M47443477


Lucas-Lehmer results:
No L-L results for M47443477


PRP results:
No PRP results for M47443477


CERT results:
No CERT results for M47443477


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