is 2 3470587 - 1
has 1044751 decimal digits
takes 0.365 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
Actual26934.399668.1159 %11500002134440001.93667.6576 %36.336270.5575 %
Target2641.025665.6250 %1900018000000.01771.8858 %1.043266.2733 %
Difference+5+33.3740+2.4909 %+1131000+211644000+1.9189+5.7717%+35.2929+4.2842 %

Known prime factors (3 factors, 138.7 bits, 0.00399649% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
347058734705871825.0495
5
-151.289e-121.855e-73.099e-7
3470587230847413128071444.3923325769
3325769
2008-09-30133257691.258e-60.02760.0515
34705877073720431106901109132169.261101909567907488
25 × 11 × 587 × 16903 × 29179
2019-05-29169032917966.2250.00270.0052

4 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2019-05-29JossManual testing2000020000022169.2610.0051.614%
2022-01-06JossManual testing1150000111642300
skipped known factor: 34705871
skipped known factor: 23084741312807
skipped known factor: 707372043110690110913
--1.14310.575%
2022-09-05JossManual testing1150000213444000
skipped known factor: 34705871
skipped known factor: 23084741312807
skipped known factor: 707372043110690110913
--2.02711.481%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-09-30markrManual testing??
44.392
14
2021-02-08JossManual testing265267
2021-08-05JossManual testing267268
2021-11-14JossManual 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 M3470587


PRP results:
dateuseridcompidcofactorsres64
2017-11-07Oliver KruseGTX-2
34705871
23084741312807
3237EACB917408DD
2017-12-16kkmrkkblmbrbkc4.xlarge
34705871
23084741312807
3237EACB917408DD
2019-05-30Niels_Mache_NextcloudSuperDry3
34705871
23084741312807
707372043110690110913
3237EACB917408DD


CERT results:
No CERT results for M3470587


P-1 factor-bounds graph:
B1 = 1150000, B2 = 213444000 (P-1 stage 2)
B1 = 1150000, B2 = 111642300 (P-1 stage 2)
B1 = 1150000 (P-1 stage 1)
B1 = 20000, B2 = 200000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
269
268
267
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