is 2 14018573 - 1
has 4220011 decimal digits
takes 6.220 GHz-days to do one PRP test
Last-known PrimeNet details:
0 L-L tests remaining
ResidueStatus
L-LF3CCC813FD9D2310double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27134.103266.1972%600000060000003.86004.1253%37.963270.3225%7.2455%
PrimeNet2650.520463.0769%6000019000000.10314.0027%0.623567.0796%4.0027%
GPU722698.516365.2174%9000024000000.13892.8536%8.655268.0710%2.8536%
Difference+2+25.5869+0.9798%+5910000+3600000+3.7212+1.2716%+29.3080+2.2514%+2.2514%

Known prime factors (2 factors, 177.8 bits, 0.00126846% known):
Remaining cofactor is PRP status unknown

GHz-days
exponentfactordigitsbits*kmin B1min B2date foundmin. TFmin. P-1normal P-1
1401857353188553953017212401612272.172189707447230960
24 × 5 × 19 × 139 × 269 × 3337903
26933379032020-09-2692.7350.11720.2185
140185736358073434889493426692390513263932105.6482267732041945172817052203
32 × 11 × 61 × 227 × 367 × 569 × 2715523 × 2917219
271552329172192020-09-261.344e+101.75413.5554

1 Composite Factors:
exponentprime factorscomposite factordigitsbits*
1401857333817673192886529143189425329611199179664195227871
4879
54177.820
P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-12-22T00:00:00ANONYMOUSv4_computers1500001837500---0.156--2.329%
2020-09-26T17:26:34masserManual testing6000000600000054177.8203.86012.447.7204.125%


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-09-08T00:00:00ITSv4_computers?265--0.267--
2014-07-22T14:09:00NesowaManual testing265266--0.533--
2015-08-19T08:18:00ThaManual testing266267--1.066--
2018-03-09T10:45:42ramgeisManual testing267268--2.132--
2018-03-09T10:45:42ramgeisManual testing268269--4.264--
2020-04-08T20:02:47masserManual testing269270--8.529--
2020-07-05T12:14:25masserManual testing270271--17.06--


ECM factoring results:
ECM Summary

B1B2factorcurvesGHz-days
50000500000042.699


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-02-17T00:00:00ANONYMOUSv4_computersF3CCC813FD9D23106.220
2005-03-20T00:00:00ANONYMOUSv4_computersF3CCC813FD9D23106.220


PRP results:
Exponent "14018573" not found


P-1 factor-bounds graph:
B1 = 6000000 (stage 1)
B1 = 150000, B2 = 1837500 (stage 2)
B1 = 150000 (stage 1)
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107
TF factor-bounds graph:
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269
268
267
266
265
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Last modified: 2020-09-26T17:26:34+00:00