is 2 43198579 - 1
has 13004069 decimal digits
takes 65.938 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L0B177223A16D7823double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2692.763762.3188 %----2.763762.3188 %
Target27222.138163.8889 %300000500000006.65703.9638 %28.795165.3203 %
Difference-3-19.3744-1.5700 %-300000-50000000-6.6570-3.9638 %-26.0314-3.0014 %

Known prime factors (1 factor, 100.4 bits, 0.00023248% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
43198579170626955357177087708331435328931100.42919749139822073439928236
22 × 3 × 89 × 2069 × 10091 × 106699 × 8300837
2011-05-3010669983008374.238e+91.22421.8695

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-05-30James HeinrichQ660031100.4292.4730.000%


Trial Factoring results:
57585960616263646566676869707172
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2007-08-14ComputerraRUv4_computers2632640.045
2007-09-13ahmeraliv4_computers212691.384


ECM factoring results:
No ECM results for M43198579


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2009-06-28curtiscwcm424--25l0B177223A16D782375.00


PRP results:
No PRP results for M43198579


CERT results:
No CERT results for M43198579


P-1 factor-bounds graph:
104
105
106
104
105
106
107
TF factor-bounds graph:
269
264
this exponent TF target: 72
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00