is 22168879-1
has 652,898 decimal digits
takes 0.143 GHz-days to do one L-L test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-L116EFFA26BC3FAAEdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26827.481967.6471%5,000,000200,000,0001.48968.9452%28.971476.5922%14.5233%
PrimeNet2580.017762.0690%10,000180,0000.00182.8556%0.019564.9245%2.8556%
GPU722620.283364.5161%11,000160,0000.00181.5671%0.285166.0833%1.5671%
Difference+6+27.1986+3.1309%+4,989,000+199,840,000+1.4877+7.3780%+28.6864+10.5090%+10.5090%

Known prime factors (1 factor, 119.0 bits, 0.00548750% known):
Remaining cofactor is not a probable-prime

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
216887967259526653029557043102056407665140136119.017155055968205302271457056978300
22 × 3 × 52 × 31 × 47 × 107 × 487 × 593 × 3863 × 28579 × 103984477
28,579103,984,4772019-10-287.072e+100.54271.0088

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-03-07T00:00:00ANONYMOUSv4_computers2,048204,800---0.001--0.225%
2010-11-03T21:28:00Jocelyn LaroucheManual testing20,00020,000---0.002--0.255%
2011-01-01T00:56:00Jocelyn LaroucheManual testing30,00030,000---0.003--0.354%
2011-01-15T16:05:00Jocelyn LaroucheManual testing50,00050,000---0.005--0.514%
2011-01-21T04:13:00markrtiny105,0002,047,500---0.020--2.405%
2014-09-02T00:10:00Jocelyn LaroucheManual testing134,593134,593---0.013--0.951%
2015-12-17T18:15:16HBendtzManual testing700,00021,000,00012---0.172--5.203%
2019-10-28T22:45:51mikrMSI5,000,000200,000,0001236119.0171.4900.2852.9798.945%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-10-11T00:00:00ANONYMOUSv4_computers254255--0.001--
1999-01-02T00:00:00ANONYMOUSv4_computers?258--0.018--
2016-02-23T16:29:07Mark RoseManual testing258260--0.053--
2009-01-04T11:28:00Sturle Sundegonzo.ifi260261--0.071--
2009-01-06T11:12:00Sturle Sundegibsy.ifi261262--0.142--
2013-09-08T17:50:00ramgeisManual testing262263--0.453--
2015-03-25T10:09:00VictordeHollanderManual testing263264--0.905--
2015-03-25T10:09:00VictordeHollanderManual testing264265--1.723--
2015-12-30T18:01:39ramgeisManual testing265266--3.445--
2016-11-11T01:20:37Gordon SpenceManual testing266267--6.891--
2019-05-06T12:23:34TJAOIManual testing267268--13.78--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50,0005,000,000393.333


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-27T00:00:00PathFinderv4_computers116EFFA26BC3FAAE0.143
2005-03-06T00:00:00ANONYMOUSv4_computers116EFFA26BC3FAAE0.143


PRP results:
dateuseridcompidcofactorsres64PRP
2019-10-29T19:04:30mnd925836b
672595266530295570431020564076651401
C7949CB882AD50DCno
2019-10-31T20:18:40arnaudstm-11-010
672595266530295570431020564076651401
C7949CB882AD50DCno


P-1 factor-bounds graph:
B1 = 5,000,000, B2 = 200,000,000 (stage 2)
B1 = 5,000,000 (stage 1)
B1 = 700,000, B2 = 21,000,000 (stage 2)
B1 = 700,000 (stage 1)
B1 = 105,000, B2 = 2,047,500 (stage 2)
B1 = 134,593 (stage 1)
B1 = 105,000 (stage 1)
B1 = 50,000 (stage 1)
B1 = 30,000 (stage 1)
B1 = 20,000 (stage 1)
B1 = 2,048, B2 = 204,800 (stage 2)
B1 = 2,048 (stage 1)
102
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102
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109
TF factor-bounds graph:
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266
265
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258
255
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2120
Last modified: 2019-10-31T20:18:40+00:00