is 2 14093899 - 1
has 4242687 decimal digits
takes 6.253 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 L-L tests remaining
ResidueStatus
L-L9E4E417787DF637Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27267.854466.6667%700000021000000011.61878.0675%79.473169.3558%2.6892%
PrimeNet2650.517663.0769%6000019000000.10314.0058%0.620764.5560%1.4791%
GPU722698.470865.2174%9000024000000.13892.8559%8.609766.2108%0.9934%
Difference+3+59.3836+1.4493%+6910000+207600000+11.4798+5.2116%+70.8634+3.1451%+3.1451%

Known prime factors (1 factor, 79.1 bits, 0.00056156% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
140938996685033239389167251305692479.14523716053447627116
22 × 204923 × 28932883873
2021-09-132049232893288387315,5611,014.21,894.1

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-12-22T00:00:00ANONYMOUSv4_computers1550001860000---0.159--2.093%
2020-09-10T03:52:09masserManual testing700000021000000012---11.62--8.067%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-09-13T21:18:55masserManual testing1000000100000027P+12479.1450.978


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00Net_Forcev4_computers?256--0.001--
2000-08-31T00:00:00ANONYMOUSv4_computers?264--0.139--
2000-09-08T00:00:00Daniel Hermlev4_computers?265--0.265--
2014-07-22T14:26:00NesowaManual testing265266--0.530--
2015-08-23T20:37:00ThaManual testing266267--1.060--
2018-02-05T20:32:15ramgeisManual testing267268--2.121--
2018-02-05T20:32:15ramgeisManual testing268269--4.242--
2020-08-10T13:49:02masserManual testing269270--8.483--
2020-08-10T13:49:02masserManual testing270271--16.97--
2021-08-09T14:03:52masserManual testing271272--33.93--


ECM factoring results:

Old Calculation Method

Total ECM effort:2.699 GHz-days
Estimated T-Level:0.200
DigitsB1CurvesCompleteFacMiss
20110004 / 1000.04096.060%
25500004 / 2800.01498.579%

New Calculation Method

Total ECM effort:2.699 GHz-days
Estimated T-Level:0.200
DigitsB1CompleteFacMiss
20110000.12987.895%
25500000.01298.841%


ECM Summary

B1B2factorcurvesGHz-days
50000500000042.699


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-03-31T00:00:00ANONYMOUSv4_computers561C9A5C2A74CF__6.253
2005-04-26T00:00:00Team Prime Ribv4_computers9E4E417787DF637E6.253
2006-02-01T00:00:00shaneamyv4_computers9E4E417787DF637E6.253


PRP results:
Exponent "14093899" not found


P-1 factor-bounds graph:
B1 = 7000000, B2 = 210000000 (P-1 stage 2)
B1 = 7000000 (P-1 stage 1)
B1 = 1000000 (P+1 stage 1)
B1 = 155000, B2 = 1860000 (P-1 stage 2)
B1 = 155000 (P-1 stage 1)
104
105
106
107
104
105
106
107
108
109
1010
1011
TF factor-bounds graph:
272
271
270
269
268
267
266
265
264
256
250
260
270
280
290
2100
Last modified: 2021-09-13T21:18:55+00:00