is 2 1417543 - 1
has 426723 decimal digits
takes 0.054 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
Actual26720.961668.6567%500000150000000.07144.9146%21.033070.1971%1.5404%
PrimeNet2560.006862.5000%65001100000.00072.7688%0.007463.5383%1.0383%
GPU722600.108365.0000%6000800000.00061.3012%0.108965.4554%0.4554%
Difference+7+20.8532+3.6567%+494000+14920000+0.0709+3.6135%+20.9241+4.7417%+4.7417%

Known prime factors (5 factors, 300.4 bits, 0.02119420% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
141754364304853634811342.5482268180
22 × 32 × 5 × 12601
-9126018.052e-73.848e-57.099e-5
14175434786933872048471548.766168846161
11 × 15349651
2008-08-2611153496514.730e-50.04630.0865
1417543846212442981472148572066.19829847857983196
22 × 11 × 1031 × 657963539
2017-11-16103165796353910.8201.98463.7067
14175432258525823372804682012167.61479663397278700
22 × 52 × 796633972787
2019-01-252579663397278723.7912,402.94,487.9
1417543468717457081390851467932375.31116532742113692172
22 × 35895593 × 115144651
2021-10-20358955931151446516,907.62.22634.0444

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
141754330782308200159116353999924072891.314
141754354415567289878569166456344843721733108.746
1417543145234172502426947209654934716768134110.162
14175434050763006256893613525661318081187935114.964
141754310811413764799438762612737885657024736116.380
141754330140807473699176669027799284646643336117.859
14175432243719471723334862907490053295610567138124.077
14175431911192654533041918819250503779310326225741133.812
1417543396634544424907074851075770339230995550360143141.509
14175431058610480683955513336041100426414785362939344142.925
141754326048372222665248805634509758922209130599759079948157.512
141754369522637973079805614464572655889791894480494980748158.928
141754314428205222674226287373150479844016379519868040075
1
51166.625
141754312289896391767125325663017770135290727346967151343
6617
54176.360
141754391487528539944482123569610239994136853273564184225
59679
55182.578
141754325505526325753194133333684489737419070956788612889
395081
56184.057
141754368073792016657617986595461985731091051482733230670
397033
56185.473
141754318986633355321013134253292065933894256206425708416
33154047
58190.275
141754350674983672915392237281941857467564917131322732965
11267871
58191.691
141754389580936102536052813505720700442524408021918392295
0022021491801
63209.123
141754358830921321716325435594283186133419676623171294792
832002064729682599
68225.126
141754312209326789317192377005595588212777142383939556175
341664689583261157607
71232.823
141754332586474080332107646591765368479482248030717750830
148090464659592018951
71234.239
141754357604889845428478506236334708425801248546804024509
20463856669658347346319281
76251.671
141754342881801731903948428704135596659050776029731882855
3552242257040174456517959447
78257.889
141754327575079839670253712573459220608998693872598554878
60934512023985554071241542084146212755007
91300.437
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2016-03-17T19:14:03alpertronManual testing5000001500000012-
skipped known factor: 6430485363481
--0.071--4.915%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-08-26T20:19:00ANONYMOUSManual testing??48.766152.08471e-50.1174.49797e-5


ECM factoring results:

Old Calculation Method

Total ECM effort:25.424 GHz-days
Estimated T-Level:25.391
DigitsB1CurvesCompleteFacMiss
2011000301 / 1003.0104.855%
2550000301 / 2801.07534.064%
3025000050 / 6400.07892.479%

New Calculation Method

Total ECM effort:25.424 GHz-days
Estimated T-Level:25.391
DigitsB1CompleteFacMiss
201100014.6540.000%
25500001.65119.189%
302500000.14186.866%
3510000000.01099.021%


ECM Summary

B1B2factorcurvesGHz-days
50000500000024711.65
50000500000010.047
50000500000030.141
250000350000004311.69
2500003500000071.902


Lucas-Lehmer results:
No L-L results for M1417543


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-30T19:29:09Oliver KruseGTX-3
6430485363481
478693387204847
61F64C17BCCCBC__no
2017-10-26T10:42:47kkmrkkblmbrbkc4.xlarge
6430485363481
478693387204847
61F64C17BCCCBC__no
2017-11-17T15:27:10kkmrkkblmbrbkc4.xlarge
6430485363481
478693387204847
84621244298147214857
E780355E93900F__no
2017-11-18T08:40:02Oliver KruseGTX-2
6430485363481
478693387204847
84621244298147214857
E780355E93900F__no
2019-01-25T13:16:43ATHec2-PRPCF2
6430485363481
478693387204847
84621244298147214857
225852582337280468201
E780355E93900FDCno
2021-10-21T06:26:30SRJ2877LTOS
6430485363481
478693387204847
84621244298147214857
225852582337280468201
46871745708139085146793
E780355E93900FDCno


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
107
108
100
101
102
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
267
2
240
250
260
270
280
290
2100
Last modified: 2021-10-21T06:26:30+00:00