is 2 550163 - 1
has 165616 decimal digits
takes 0.008 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26754.009370.1493%1500000500000000.08766.1631%54.096976.3124%26.3124%
PrimeNet2400.000050.0000%55001900000.000319.7722%0.000369.7722%19.7722%
GPU722440.000054.5455%90003200000.000514.8457%0.000669.3911%14.8457%
Difference+23+54.0093+15.6038%+1491000+49680000+0.0870-8.6825%+54.0963+6.9213%+6.9213%

Known prime factors (5 factors, 219.7 bits, 0.03992855% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
55016362718583825.90257
3 × 19
-3198.225e-128.187e-81.291e-7
55016310398080711029.954945
33 × 5 × 7
2008-07-2127271.566e-105.709e-71.162e-6
55016397033843782711343.1428818645
5 × 11 × 109 × 1471
2008-07-2110914713.829e-63.874e-64.691e-6
5501631594251072697355771857.146144888975876
22 × 3 × 67 × 180210169
2015-07-21671802101690.04150.20760.3878
550163133064432131058644312063.52912093182577805
5 × 72 × 43 × 53 × 229 × 271 × 349
2014-11-042713494.82055.820e-61.166e-5

26 Composite Factors:
exponentprime factorscomposite factordigitsbits*
550163652152888050833931755.856
5501636085825185094931099932169.044
550163100896573925415028252412373.095
55016399989168225808141741273912583.048
5501631657715132591118270004419672787.099
5501638345612630959668461024212732789.431
550163138361470492906508127856226012993.482
5501636328090146156778258896121535033098.998
550163154696309538533063412271444736731100.287
55016312911753320440161589070294817880133106.670
5501631039695441337720562800886054397276135113.002
55016386778353711114077412571253230749438336119.385
550163212138113662804737714451342137956168737120.674
5501639702333329586177635866809825248632096138126.190
550163160854471212080964836434648680051129905740130.241
550163809806872303551871157517178369682935898340132.573
55016313425745313354729292859477937981203090287142136.624
55016313305001889224052955137046801340801416972952145146.577
550163220582922753299738772524598891829219658497577746150.628
55016310088564503636010595814007937315627235234427623148156.143
550163842043721772499597596738474389942938458027975179349162.526
5501632058457658151537280405414662063193321931698690317750163.816
55016313834648349085418190082902175138898934976711982276
3991
54176.530
55016312910354748476281749870127313202734160661896463968
19638191
58189.718
55016321404008867577274052229403177150459281778816089324
740141567
59193.770
55016313424291066938812715584961582065747839523650645400
49128522301639561
67219.672
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2014-11-04T20:01:00alpertronManual testing150000050000000122063.5290.0320.0160.0636.163%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-21T09:21:00J FeitsmaManual testing??29.954102.65908e-110.0175.55634e-11
2015-05-28T11:06:00TJAOIManual testing25725857.146180.0070.0170.014


ECM factoring results:
Total ECM effort:16.172 GHz-days
Estimated T-Level:26.125
DigitsB1CurvesCompleteFacMiss
2011000425 / 1004.2501.396%
2550000425 / 2801.51821.859%
30250000144 / 6400.22579.838%

ECM Summary

B1B2factorcurvesGHz-days
5000050000002814.540
2500002500000014411.63


Lucas-Lehmer results:
Exponent "550163" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-27T10:45:55Oliver KruseGTX-2
62718583
1039808071
9703384378271
159425107269735577
13306443213105864431
1EA83B89084EF171no
2017-09-28T09:43:05Oliver KruseManual testing
62718583
1039808071
9703384378271
159425107269735577
13306443213105864431
1EA83B89084EF1__no
2017-10-13T09:42:07Oliver KruseGTX-11EA83B89084EF1__no
2017-12-15T16:14:21ATHec2-1xf
62718583
1039808071
9703384378271
159425107269735577
13306443213105864431
1EA83B89084EF1__no
2020-04-19T06:11:24Oliver KruseAddPrpType5
62718583
1039808071
9703384378271
159425107269735577
13306443213105864431
61FF0B56A7B637__no


P-1 factor-bounds graph:
B1 = 1500000, B2 = 50000000 (stage 2)
B1 = 1500000 (stage 1)
100
101
102
103
104
105
106
107
100
101
102
103
104
105
106
107
108
109
TF factor-bounds graph:
267
258
2
220
230
240
250
260
270
280
290
2100
Last modified: 2020-10-30T10:27:54+00:00