is 216817239-1
has 5,062,494 decimal digits
takes 9.196 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LE46F0EF8AE41FD73double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27014.208764.2857%1,500,00030,000,0002.42046.2775%16.629170.5633%9.0248%
PrimeNet2650.433861.5385%80,0002,400,0000.16364.5233%0.597566.0618%4.5233%
GPU722697.099163.7681%120,0003,200,0000.22823.2902%7.327367.0583%3.2902%
Difference+1+7.1096+0.5176%+1,380,000+26,800,000+2.1922+2.9873%+9.3018+3.5049%+3.5049%

Known prime factors (1 factor, 123.0 bits, 0.00073161% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
168172391091265772417028968045582082169820340938123.037324448553183144084485444394936
23 × 13 × 18947 × 100193 × 150833 × 1222751 × 8910463
1,222,7518,910,4632020-07-068.622e+91.30161.9731

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-12-13T00:00:00delta_tv4_computers100,0001,950,000---0.159--2.537%
2005-12-24T00:00:00delta_tv4_computers100,0001,950,000---0.159--2.537%
2006-01-15T00:00:00delta_tv4_computers100,0001,950,000---0.159--2.537%
2020-07-06T20:11:48ThaZ-1701,500,00030,000,0001238123.0372.42018.394.8416.278%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-12-14T00:00:00ANONYMOUSv4_computers?256--0.001--
2001-04-15T00:00:00Net_Forcev4_computers?259--0.002--
2001-07-22T00:00:00KA9DGXv4_computers?265--0.222--
2016-03-16T02:40:05Mark RoseManual testing265266--0.444--
2014-09-15T21:08:00NesowaManual testing266267--0.889--
2018-02-13T11:40:39ramgeisManual testing267268--1.777--
2018-02-13T11:40:39ramgeisManual testing268269--3.555--
2020-05-25T21:36:44lycornManual testing269270--7.110--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,00010.831


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2003-02-09T00:00:00Danv4_computersE46F0EF8AE41FD739.196
2006-04-14T00:00:00Team Prime Ribv4_computersE46F0EF8AE41FD739.196


PRP results:
dateuseridcompidcofactorsres64PRP
2020-07-21T21:04:26CrypticClueManual testing
10912657724170289680455820821698203409
E1A040F0B9093E40no
2020-09-17T15:15:43JaytholomewJaytholomew
10912657724170289680455820821698203409
E1A040F0B9093E40no


P-1 factor-bounds graph:
B1 = 1,500,000, B2 = 30,000,000 (stage 2)
B1 = 1,500,000 (stage 1)
B1 = 100,000, B2 = 1,950,000 (stage 2)
B1 = 100,000 (stage 1)
104
105
106
107
104
105
106
107
108
TF factor-bounds graph:
270
269
268
267
266
265
259
256
250
260
270
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290
2100
2110
2120
2130
Last modified: 2020-09-17T15:15:43+00:00