is 2 14358361 - 1
has 4322298 decimal digits
takes 6.876 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-LAFF5882DCC8DFE14double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual2672.069564.1791%17000032725000.23544.2416%2.304965.6985%1.5194%
PrimeNet2650.508163.0769%6000019000000.11134.0168%0.619464.5600%1.4831%
GPU722698.314865.2174%10000024000000.15652.9213%8.471266.2335%1.0161%
Difference-2-6.2453-1.0383%+70000+872500+0.0790+1.3202%-6.1664-0.5350%-0.5350%

Known prime factors (1 factor, 74.3 bits, 0.00051724% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
14358361227362605445005137144632374.267791742892677671
112 × 41 × 181 × 881731531
2016-10-09181881731531267.0933.35862.303

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2002-01-02T00:00:00ANONYMOUSv4_computers1700003272500---0.235--4.242%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00Net_Forcev4_computers21256--0.001--
2000-09-15T00:00:00Net_Forcev4_computers21257--0.001--
2000-09-23T00:00:00Net_Forcev4_computers21258--0.003--
2000-12-07T00:00:00ANONYMOUSv4_computers21265--0.508--
2014-08-14T09:07:00NesowaManual testing265266--0.520--
2015-09-22T21:07:00NesowaManual testing266267--1.041--


ECM factoring results:

Old Calculation Method

Total ECM effort:0.728 GHz-days
Estimated T-Level:0.050
DigitsB1CurvesCompleteFacMiss
20110001 / 1000.01099.000%
25500001 / 2800.00499.643%

New Calculation Method

Total ECM effort:0.728 GHz-days
Estimated T-Level:0.050
DigitsB1CompleteFacMiss
20110000.03296.826%
25500000.00399.709%


ECM Summary

B1B2factorcurvesGHz-days
50000500000010.728


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-02-17T00:00:00ANONYMOUSv4_computersAFF5882DCC8DFE146.876
2002-12-16T00:00:00ANONYMOUSv4_computersAFF5882DCC8DFE146.876


PRP results:
No PRP results for M14358361


P-1 factor-bounds graph:
B1 = 170000, B2 = 3272500 (P-1 stage 2)
B1 = 170000 (P-1 stage 1)
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TF factor-bounds graph:
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2100
Last modified: 2016-10-10T03:04:58+00:00