is 2 3487597 - 1
has 1049872 decimal digits
takes 0.366 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
Actual26934.231868.1159 %10000001296949501.22017.0269 %35.451970.3564 %
Target2641.020665.6250 %1900018000000.01771.8875 %1.038266.2738 %
Difference+5+33.2113+2.4909 %+981000+127894950+1.2024+5.1394%+34.4137+4.0826 %

Known prime factors (1 factor, 26.3 bits, 0.00075464% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
348759783702329826.31912
22 × 3
-442.570e-126.092e-71.240e-6

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2022-01-08JossManual testing1000000129694950
skipped known factor: 83702329
--1.44910.667%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2021-02-24JossManual testing265266
2022-06-03LordJuliusManual testing266267
2021-04-03JossManual testing267268
2022-01-08JossManual testing268269


ECM factoring results:
Total ECM effort:0.442 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.442


Lucas-Lehmer results:
No L-L results for M3487597


PRP results:
dateuseridcompidcofactorsres64
2017-11-07kkmrkkblmbrbkc4.xlarge
83702329
B837DE1270C3383C
2017-11-23Oliver KruseThreadripper-PC
83702329
B837DE1270C3383C


CERT results:
No CERT results for M3487597


P-1 factor-bounds graph:
B1 = 1000000, B2 = 129694950 (P-1 stage 2)
B1 = 1000000 (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:
269
268
267
266
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
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Last modified: 2024-03-13T02:15:48+00:00