is 2 3488449 - 1
has 1050128 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
Actual26817.086467.6471 %3488449351607620029.675912.7751 %46.762271.7802 %
Target2641.020365.6250 %1900018000000.01771.8876 %1.038066.2739 %
Difference+4+16.0660+2.0221 %+3469449+3514276200+29.6582+10.8874%+45.7242+5.5063 %

Known prime factors (1 factor, 37.5 bits, 0.00107623% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
34884492003486029691237.54428716
22 × 3 × 2393
-423936.380e-92.043e-53.713e-5

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2021-02-16JossManual testing348844348844
skipped known factor: 200348602969
---2.685%
2021-02-18JossManual testing34884438372936
skipped known factor: 200348602969
---5.395%
2021-05-31JossManual testing34884493488449
skipped known factor: 200348602969
--0.5315.750%
2021-08-04JossManual testing3488449104653476
skipped known factor: 200348602969
--0.5897.559%
2021-08-10JossManual testing34884493488449012
skipped known factor: 200348602969
--0.7929.511%
2021-12-21JossManual testing3488449156883650
skipped known factor: 200348602969
--2.14211.897%
2022-08-07JossManual testing34884493516076200
skipped known factor: 200348602969
--31.0716.640%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2021-02-24JossManual testing265266
2022-06-03LordJuliusManual testing266267
2021-05-31JossManual testing267268


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 M3488449


PRP results:
dateuseridcompidcofactorsres64
2017-11-07Oliver KruseGTX-3
200348602969
88EFCF9EAD332371
2017-12-16ATHwork
200348602969
88EFCF9EAD332371


CERT results:
No CERT results for M3488449


P-1 factor-bounds graph:
B1 = 3488449, B2 = 3516076200 (P-1 stage 2)
B1 = 3488449, B2 = 156883650 (P-1 stage 2)
B1 = 3488449, B2 = 34884490 (P-1 stage 2)
B1 = 3488449, B2 = 10465347 (P-1 stage 2)
B1 = 3488449 (P-1 stage 1)
B1 = 348844, B2 = 3837293 (P-1 stage 2)
B1 = 348844 (P-1 stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
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