is 2 50814571 - 1
has 15296711 decimal digits
takes 93.089 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
Actual2670.584861.1940 %----0.584861.1940 %
Target27337.643664.3836 %340000550000008.81373.7939 %46.457465.7348 %
Difference-6-37.0589-3.1895 %-340000-55000000-8.8137-3.7939 %-45.8726-4.5408 %

Known prime factors (1 factor, 83.6 bits, 0.00016460% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
50814571151035670682129020711297612683.643148614528972535280
24 × 5 × 17749 × 31873 × 3283783
2009-02-0431873328378347,2290.55530.8876

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-02-04ATHwork22683.6435.1850.000%


Trial Factoring results:
5758596061626364656667686970717273
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-10-15ANONYMOUSv4_computers212532.36000e-5
2000-02-09ANONYMOUSv4_computers212544.72000e-5
2000-04-19ANONYMOUSv4_computers212560.000
2001-04-21ANONYMOUSv4_computers212570.000
2002-01-22ANONYMOUSv4_computers212580.001
2003-08-25ANONYMOUSv4_computers212590.001
2003-11-08ANONYMOUSv4_computers212600.002
2007-03-20James Heinrichv4_computers212630.019
2008-09-27DerekManual testing212640.037
2009-01-25cawgodcawgod12642660.221
2009-01-28tmorrowMoo22662670.294


ECM factoring results:
No ECM results for M50814571


Lucas-Lehmer results:
No L-L results for M50814571


PRP results:
No PRP results for M50814571


CERT results:
No CERT results for M50814571


P-1 factor-bounds graph:
103
104
105
103
104
105
106
107
TF factor-bounds graph:
267
266
264
263
260
259
258
257
256
254
253
this exponent TF target: 73
TF double-checked to: 67
250
260
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Last modified: 2024-03-13T02:15:48+00:00