is 2 194647 - 1
has 58595 decimal digits
takes 0.001 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
-unknown- primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267152.655473.1343%10000000020000000001.360712.3066%154.016176.4406%3.3063%
PrimeNet2400.000055.0000%2000500000.000012.4352%0.000060.5958%5.5958%
GPU722440.000059.0909%3600800000.00018.8255%0.000162.7013%3.6104%
Difference+23+152.6554+14.0434%+99996400+1999920000+1.3607+3.4811%+154.0161+13.7392%+13.7392%

Known prime factors (3 factors, 113.1 bits, 0.05812290% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
19464777858801826.214200
23 × 52
-25254.792e-111.672e-73.402e-7
194647817517401929.6072100
22 × 3 × 52 × 7
2008-07-2725255.345e-101.672e-73.402e-7
1946471790873888088067911857.313460031207285
5 × 13 × 1091 × 6487079
2014-07-28109164870790.13720.00240.0044

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
194647636509246384962011755.821
194647139435293668745149879175912683.528
1946471464070566508522136894701912786.920
1946471139907788877442898605793539650099135113.134
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2017-09-02T03:39:09kkmrkkblmbrbkManual testing100000000200000000012-
skipped known factor: 77858801
skipped known factor: 817517401
skipped known factor: 179087388808806791
--1.361--12.307%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-04-22T06:48:45nordisweet1610000000100000000027--0.455


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-27T10:50:00J FeitsmaManual testing??29.60791.67018e-100.0023.47016e-10


ECM factoring results:

Old Calculation Method

Total ECM effort:12.637 GHz-days
Estimated T-Level:28.609
DigitsB1CurvesCompleteFacMiss
2011000743 / 1007.4300.057%
2550000743 / 2802.6547.007%
30250000462 / 6400.72248.557%

New Calculation Method

Total ECM effort:12.637 GHz-days
Estimated T-Level:28.609
DigitsB1CompleteFacMiss
201100047.5650.000%
25500006.3860.169%
302500000.65152.140%
3510000000.05294.905%
4030000000.00399.657%


ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
5000050000002811.371
2500002500000046211.27


Lucas-Lehmer results:
No L-L results for M194647


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T01:47:14Oliver KruseOllaptop
77858801
817517401
179087388808806791
29BD525BC7FD05__no
2017-09-22T10:02:13Oliver KruseManual testing
77858801
817517401
179087388808806791
29BD525BC7FD05__no
2017-09-22T10:02:20Oliver KruseManual testing
77858801
817517401
179087388808806791
29BD525BC7FD05__no
2017-11-06T16:05:30kkmrkkblmbrbkc4.xlarge
77858801
817517401
179087388808806791
29BD525BC7FD05__no
2020-04-17T19:05:55Oliver KruseAddPrpType5
77858801
817517401
179087388808806791
30754C419D1282__no


P-1 factor-bounds graph:
B1 = 100000000, B2 = 2000000000 (P-1 stage 2)
B1 = 100000000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2021-04-22T06:48:45+00:00