is 2 3511667 - 1
has 1057118 decimal digits
takes 0.369 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
Actual26816.973467.6471 %10000002332184402.07918.3122 %19.052470.3363 %
Target2641.013665.6250 %2000018000000.01781.9166 %1.031466.2838 %
Difference+4+15.9598+2.0221 %+980000+231418440+2.0612+6.3956%+18.0210+4.0525 %

Known prime factors (1 factor, 24.7 bits, 0.00070461% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
351166728093337824.7444
22
-446.370e-136.092e-71.240e-6

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-10-11JossManual testing35116635116676
skipped known factor: 28093337
---5.300%
2022-04-18JossManual testing1000000145208700
skipped known factor: 28093337
--1.41210.830%
2022-09-09JossManual testing1000000233218440
skipped known factor: 28093337
--2.17711.482%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2022-01-31JossManual testing267268


ECM factoring results:
Total ECM effort:0.443 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.443


Lucas-Lehmer results:
No L-L results for M3511667


PRP results:
dateuseridcompidcofactorsres64
2017-11-07kkmrkkblmbrbkc4.xlarge
28093337
B57C3172C0E9836F
2017-11-24Oliver KruseGTX-3
28093337
B57C3172C0E9836F


CERT results:
No CERT results for M3511667


P-1 factor-bounds graph:
B1 = 1000000, B2 = 233218440 (P-1 stage 2)
B1 = 1000000, B2 = 145208700 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 351166, B2 = 3511667 (P-1 stage 2)
B1 = 351166 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
268
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
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270
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Last modified: 2024-03-13T02:15:48+00:00