is 2 47032879 - 1
has 14158308 decimal digits
takes 81.654 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
Actual2681.267361.7647 %----1.267361.7647 %
Target27220.333363.8889 %340000550000008.35274.1545 %28.686065.3891 %
Difference-4-19.0660-2.1242 %-340000-55000000-8.3527-4.1545 %-27.4187-3.6244 %

Known prime factors (1 factor, 73.0 bits, 0.00015515% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
4703287992665096001717190916732272.97398510975696084
22 × 7 × 4241 × 15083 × 55001
2009-08-24150835500123.1680.04340.0773

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-08-24MymindawayCympak2272.9731.3720.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2006-06-13Clark B. Wierdav4_computers212620.007
2008-03-03ITSv4_computers212680.636


ECM factoring results:
No ECM results for M47032879


Lucas-Lehmer results:
No L-L results for M47032879


PRP results:
No PRP results for M47032879


CERT results:
No CERT results for M47032879


P-1 factor-bounds graph:
103
104
105
103
104
105
TF factor-bounds graph:
268
262
this exponent TF target: 72
TF double-checked to: 67
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00