is 21634869-1
has 492,145 decimal digits
takes 0.073 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L8C1AD9B6D9B514E9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2630.976266.6667%1,000,00040,000,0000.20249.1033%1.178675.7700%12.6121%
PrimeNet2570.011763.1579%7,000120,0000.00092.5588%0.012665.7167%2.5588%
GPU722610.187965.5738%6,50070,0000.00061.1190%0.188566.6928%1.1190%
Difference+2+0.7883+1.0929%+993,500+39,930,000+0.2017+7.9843%+0.9901+9.0772%+9.0772%

Known prime factors (1 factor, 78.6 bits, 0.00480629% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
16348694507138550735776013365132478.577137844027586790624
25 × 11 × 239 × 241 × 1499 × 4535537
1,4994,535,5372012-02-1253,8490.01610.0299

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2012-02-12T14:09:00AxonManual testing100,000100,000---0.006--1.528%
2012-02-12T14:09:00AxonManual testing200,000200,000---0.013--2.131%
2012-02-12T14:09:00AxonManual testing300,000300,000---0.019--2.536%
2012-02-12T14:09:00AxonManual testing400,000400,000---0.026--2.848%
2012-02-12T14:09:00AxonManual testing500,000500,000---0.032--3.103%
2012-02-12T14:09:00AxonManual testing600,000600,000---0.039--3.319%
2012-02-12T14:10:00AxonManual testing700,000700,000---0.045--3.508%
2012-02-12T14:10:00AxonManual testing800,000800,000---0.052--3.677%
2012-02-12T14:10:00AxonManual testing900,000900,000---0.058--3.828%
2012-02-12T14:10:00AxonManual testing1,000,0001,000,000---0.065--3.967%
2012-02-12T14:10:00AxonManual testing1,000,00016,000,000---0.118--7.822%
2012-02-12T14:11:00AxonManual testing1,000,00024,000,000---0.146--8.389%
2012-02-12T14:11:00AxonManual testing1,000,00032,000,000---0.174--8.792%
2012-02-12T14:11:00AxonManual testing1,000,00040,000,000---0.202--9.103%
2016-03-17T19:17:41alpertronManual testing500,00015,000,00012---0.084--7.303%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-07T00:00:00ANONYMOUSv4_computers?257--0.012--
2003-06-17T00:00:00ANONYMOUSv4_computers?258--0.023--
2010-05-05T12:40:00For Researchm1_tt260261--0.094--
2010-09-26T01:51:00GrunwalderGIMPManual testing21263--0.976--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
10.00000e+0
50,0005,000,00025114.10


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-11-21T00:00:00ANONYMOUSv4_computers8C1AD9B6D9B514E90.073


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-02T15:55:25Oliver KruseGTX-2
450713855073577601336513
759B78A054D926__no
2017-11-01T23:10:37kkmrkkblmbrbkc4.xlarge
450713855073577601336513
759B78A054D926__no


P-1 factor-bounds graph:
B1 = 1,000,000, B2 = 40,000,000 (stage 2)
B1 = 1,000,000, B2 = 32,000,000 (stage 2)
B1 = 1,000,000, B2 = 24,000,000 (stage 2)
B1 = 1,000,000, B2 = 16,000,000 (stage 2)
B1 = 500,000, B2 = 15,000,000 (stage 2)
B1 = 1,000,000 (stage 1)
B1 = 900,000 (stage 1)
B1 = 800,000 (stage 1)
B1 = 700,000 (stage 1)
B1 = 600,000 (stage 1)
B1 = 500,000 (stage 1)
B1 = 400,000 (stage 1)
B1 = 300,000 (stage 1)
B1 = 200,000 (stage 1)
B1 = 100,000 (stage 1)
102
103
104
105
106
102
103
104
105
106
107
108
TF factor-bounds graph:
263
261
258
257
250
260
270
280
290
2100
Last modified: 2019-11-11T13:12:31+00:00