is 2 13043603 - 1
has 3926516 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-L68190B6C822D5E37double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2699.152965.2174%25500065662500.35474.1484%9.507666.6603%1.4429%
PrimeNet2640.272962.5000%6000017000000.08854.3393%0.361364.1272%1.6272%
GPU722684.569764.7059%9000024000000.12783.1704%4.697565.8248%1.1190%
Difference+1+4.5832+0.5115%+165000+4166250+0.2268+0.9780%+4.8101+0.8355%+0.8355%

Known prime factors (1 factor, 75.1 bits, 0.00057569% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
13043603402273088768590012232572375.0911542032093312676
22 × 32 × 7 × 6119174973463
2019-10-28961191749734631,002.6197,462368,803

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-07-17T00:00:00ANONYMOUSv4_computers200000200000---0.118--1.399%
2001-10-25T00:00:00ANONYMOUSv4_computers1500001912500---0.146--2.924%
2012-04-23T09:05:00James Heinrichi7-9202550006566250---0.355--4.148%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-05-05T00:00:00korvav4_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--
2018-01-09T16:37:27ramgeisManual testing268269--4.583--


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
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.621
50000500000010.621


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-01-02T00:00:00ANONYMOUSv4_computers68190B6C822D5E375.328
2004-10-18T00:00:00ANONYMOUSv4_computers68190B6C822D5E375.328


PRP results:
No PRP results for M13043603


P-1 factor-bounds graph:
B1 = 255000, B2 = 6566250 (P-1 stage 2)
B1 = 255000 (P-1 stage 1)
B1 = 150000, B2 = 1912500 (P-1 stage 2)
B1 = 200000 (P-1 stage 1)
B1 = 150000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2019-10-28T06:55:12+00:00