is 2 34148893 - 1
has 10279842 decimal digits
takes 40.410 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L08310B4429407F72double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2681.745461.7647 %38000077900001.34475.6099 %3.090263.9097 %
Target27113.999863.3803 %240000350000003.66133.8425 %17.661164.7874 %
Difference-3-12.2544-1.6156 %+140000-27210000-2.3166+1.7674%-14.5709-0.8777 %

Known prime factors (1 factor, 68.6 bits, 0.00020099% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
341488934588494449377595793832168.6376718364852087
7 × 98947 × 9699803
2013-01-139894796998032.49081.06731.6936

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2004-10-03Josef Spiessv4_computers3800007790000--1.3454.178%
2013-01-13NumberwangManual testing2168.6371.3730.000%


Trial Factoring results:
575859606162636465666768697071
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2004-10-03Josef Spiessv4_computers212680.875


ECM factoring results:
No ECM results for M34148893


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2004-10-18Josef Spiessv4_computers08310B4429407F7240.41


PRP results:
No PRP results for M34148893


CERT results:
No CERT results for M34148893


P-1 factor-bounds graph:
B1 = 380000, B2 = 7790000 (P-1 stage 2)
B1 = 380000 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
TF factor-bounds graph:
268
this exponent TF target: 71
TF double-checked to: 67
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Last modified: 2024-03-13T02:15:48+00:00