is 2 13043669 - 1
has 3926536 decimal digits
takes 5.328 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L9E89F3C02D41ECFEdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27273.317866.6667%25500065662500.35473.0275%73.672567.6758%1.0092%
PrimeNet2640.272962.5000%6000017000000.08854.3393%0.361364.1272%1.6272%
GPU722684.569664.7059%9000024000000.12783.1704%4.697565.8248%1.1190%
Difference+4+68.7482+1.9608%+165000+4166250+0.2268-0.1429%+68.9750+1.8510%+1.8510%

Known prime factors:
No known factors for M13043669

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-07-17T00:00:00ANONYMOUSv4_computers200000200000---0.118--0.945%
2012-04-20T21:14:00James Heinrichi7-9202550006566250---0.355--3.027%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-05-10T00:00:00ANONYMOUSv4_computers21264--0.273--
2013-05-27T20:16:00lycornManual testing264265--0.286--
2014-05-19T10:19:00NesowaManual testing265266--0.573--
2015-07-04T23:27:00NesowaManual testing266267--1.146--
2017-12-22T13:48:53-Anonymous-Manual testing267268--2.292--
2018-01-24T22:57:25ramgeisManual testing268269--4.583--
2021-08-07T06:25:01SRBaseManual testing269270--9.166--
2021-08-30T16:09:54SRBaseManual testing270271--18.33--
2021-10-22T19:01:06-Anonymous-Manual testing271272--36.67--


ECM factoring results:

Old Calculation Method

Total ECM effort:1.242 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:1.242 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.07792.596%
25500000.00799.291%


ECM Summary

B1B2factorcurvesGHz-days
50000500000021.242


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2001-08-24T00:00:00ANONYMOUSv4_computers9E89F3C02D41ECFE5.328
2004-11-30T00:00:00ANONYMOUSv4_computers9E89F3C02D41ECFE5.328


PRP results:
No PRP results for M13043669


P-1 factor-bounds graph:
B1 = 255000, B2 = 6566250 (P-1 stage 2)
B1 = 255000 (P-1 stage 1)
B1 = 200000 (P-1 stage 1)
104
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106
104
105
106
107
TF factor-bounds graph:
272
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270
269
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264
250
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2100
Last modified: 2021-10-22T19:01:06+00:00