is 2 9345143 - 1
has 2813169 decimal digits
takes 2.583 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L53410F57BBAEF008double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2673.179664.1791%11500024437500.09693.5434%3.276565.4484%1.2693%
PrimeNet2640.380962.5000%4000011000000.03923.4917%0.420163.8094%1.3094%
GPU722686.378264.7059%6000014000000.05332.4575%6.431565.5732%0.8674%
Difference-1-3.1986-0.5268%+55000+1043750+0.0436+1.0858%-3.1549-0.1249%-0.1249%

Known prime factors (1 factor, 66.9 bits, 0.00071587% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
93451431375633575961695984792166.8997360152626673
32 × 7 × 11 × 29 × 366231409
2014-07-25293662314091.82027.996614.935

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2004-05-25T00:00:00Sturle Sundev4_computers1150002443750---0.097--3.543%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
1998-11-21T00:00:00ANONYMOUSv4_computers21255--0.001--
1999-02-21T00:00:00ANONYMOUSv4_computers21264--0.381--
2013-09-06T00:59:00NesowaManual testing264265--0.400--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.841 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.841 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.841


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-02-23T00:00:00ANONYMOUSv4_computers53410F57BBAEF0082.583
2003-04-27T00:00:00ANONYMOUSv4_computers53410F57BBAEF0082.583


PRP results:
dateuseridcompidcofactorsres64PRP
2019-08-31T06:23:25Justine V.Gible_Desktop_1
137563357596169598479
BD56B73DE83921__no
2020-11-18T00:47:07Team_InspectorSpudBoy4
137563357596169598479
BD56B73DE83921E5no


P-1 factor-bounds graph:
B1 = 115000, B2 = 2443750 (P-1 stage 2)
B1 = 115000 (P-1 stage 1)
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TF factor-bounds graph:
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264
255
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2100
Last modified: 2020-11-18T00:47:07+00:00