is 23642241-1
has 1,096,424 decimal digits
takes 0.383 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LB4B7213A4B93167Fdouble-checked
PRP6C29C79AF1B16B__double-checked

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26816.364967.6471%30,000,000600,000,0009.298111.8450%25.663079.4921%16.1587%
PrimeNet2600.042263.3333%16,000320,0000.00503.0752%0.047166.4086%3.0752%
GPU722640.977265.6250%22,000400,0000.00652.0354%0.983767.6604%2.0354%
Difference+4+15.3877+2.0221%+29,978,000+599,600,000+9.2916+9.8096%+24.6793+11.8316%+11.8316%

Known prime factors (1 factor, 119.5 bits, 0.00328227% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
364224197174944190122674259344344974207443336119.548133399937277795008978461810976
25 × 97 × 2687 × 968537 × 2568523 × 6429342637
2,568,5236.42934e+92020-08-234.233e+1053.71599.63

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2009-07-06T17:20:00Carsten Kossendeyleela20,000245,000---0.005--0.961%
2012-01-25T21:20:00Squeeky_SquirrelP4_260090,0001,620,000---0.026--2.388%
2016-06-09T04:19:29Jocelyn LaroucheManual testing108,0003,240,0006---0.042--2.904%
2016-12-28T01:46:03Jocelyn Larouche low 4MManual testing129,600129,600---0.020--1.022%
2017-01-30T01:30:50Jocelyn Larouche low 4MManual testing167,520167,520---0.026--1.173%
2017-02-04T18:43:02Jocelyn Larouche low 4MManual testing201,024201,024---0.031--1.289%
2017-03-02T20:51:38Jocelyn Larouche low 4MManual testing241,2282,412,2806---0.055--3.088%
2020-08-23T07:52:04axnManual testing30,000,000600,000,0001236119.5489.2980.76518.6011.845%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2009-03-10T06:04:00S485122USB-A260261--0.042--
2011-05-19T22:47:00markrManual testing?262--0.084--
2012-06-20T01:22:00GrunwalderGIMPManual testing21263--0.438--
2016-02-23T16:29:35Mark RoseManual testing262263--0.270--
2015-01-22T10:40:00VictordeHollanderManual testing263264--0.539--
2015-01-22T10:40:00VictordeHollanderManual testing264265--1.026--
2015-10-20T08:54:34ramgeisManual testing265266--2.052--
2016-12-27T02:13:38Gordon SpenceManual testing266267--4.103--
2018-07-23T16:23:35TJAOIManual testing267268--8.207--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,000121.783


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-10-18T00:00:00ANONYMOUSv4_computersB4B7213A4B93167F0.383
1999-11-24T00:00:00ANONYMOUSv4_computersB4B7213A4B93167F0.383


PRP results:
dateuseridcompidcofactorsres64PRP
2020-08-23T16:15:13CrypticCluecruncher
971749441901226742593443449742074433
6C29C79AF1B16B81no


P-1 factor-bounds graph:
B1 = 30,000,000, B2 = 600,000,000 (stage 2)
B1 = 30,000,000 (stage 1)
B1 = 241,228, B2 = 2,412,280 (stage 2)
B1 = 108,000, B2 = 3,240,000 (stage 2)
B1 = 241,228 (stage 1)
B1 = 201,024 (stage 1)
B1 = 90,000, B2 = 1,620,000 (stage 2)
B1 = 167,520 (stage 1)
B1 = 129,600 (stage 1)
B1 = 108,000 (stage 1)
B1 = 90,000 (stage 1)
B1 = 20,000, B2 = 245,000 (stage 2)
B1 = 20,000 (stage 1)
103
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108
103
104
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1010
TF factor-bounds graph:
268
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266
265
264
263
262
261
250
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2100
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2120
Last modified: 2020-08-23T16:15:13+00:00