is 2 10436203 - 1
has 3141611 decimal digits
takes 3.409 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 L-L tests remaining
ResidueStatus
L-L80CB3CBAA5343D12double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27145.809666.1972%13000025675000.12452.3570%45.934166.9939%0.7967%
PrimeNet2640.341162.5000%4500013000000.05373.7687%0.394863.9133%1.4133%
GPU722685.711464.7059%7000017000000.07522.7023%5.786665.6596%0.9538%
Difference+3+40.0982+1.4913%+60000+867500+0.0493-0.3454%+40.1475+1.3343%+1.3343%

Known prime factors:
No known factors for M10,436,203

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2003-11-08T00:00:00Matt Perryv4_computers55000605000---0.040--1.337%
2013-07-08T10:17:00NesowaEPC1300002567500---0.124--2.357%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-01-25T00:00:00ANONYMOUSv4_computers?264--0.188--
2013-12-22T11:41:00lycornManual testing264265--0.358--
2015-05-03T18:17:00ThaManual testing265266--0.716--
2015-12-11T23:18:54VictordeHollanderManual testing266267--1.432--
2017-09-25T10:54:47-Anonymous-Manual testing267268--2.864--
2017-11-06T09:49:59ramgeisManual testing268269--5.728--
2020-08-11T09:33:20ViliamFManual testing269270--11.46--
2021-08-17T05:37:41SRBaseManual testing270271--22.91--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.993 GHz-days
Estimated T-Level:0.100
DigitsB1CurvesCompleteFacMiss
20110002 / 1000.02098.010%
25500002 / 2800.00799.287%

New Calculation Method

Total ECM effort:0.993 GHz-days
Estimated T-Level:0.100
DigitsB1CompleteFacMiss
20110000.06593.752%
25500000.00699.419%


ECM Summary

B1B2factorcurvesGHz-days
50000500000020.993


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2000-08-10T00:00:00ANONYMOUSv4_computers80CB3CBAA5343D123.409
2003-12-23T00:00:00Matt Perryv4_computers80CB3CBAA5343D123.409


PRP results:
Exponent "10436203" not found


P-1 factor-bounds graph:
B1 = 130000, B2 = 2567500 (P-1 stage 2)
B1 = 130000 (P-1 stage 1)
B1 = 55000, B2 = 605000 (P-1 stage 2)
B1 = 55000 (P-1 stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2021-08-17T05:37:41+00:00