is 2 14091199 - 1
has 4241874 decimal digits
takes 6.252 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 L-L tests remaining
ResidueStatus
L-LF4E995759D6811CCdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual27267.867466.6667%700000021000000011.61878.0673%79.486169.3558%2.6891%
PrimeNet2650.517763.0769%6000019000000.10314.0057%0.620864.5560%1.4790%
GPU722698.472465.2174%9000024000000.13892.8558%8.611366.2107%0.9933%
Difference+3+59.3950+1.4493%+6910000+207600000+11.4798+5.2115%+70.8748+3.1451%+3.1451%

Known prime factors (1 factor, 80.1 bits, 0.00056815% known):
Remaining cofactor is PRP status unknown

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
1409119912599635508603353260821932580.06044707464242763704
23 × 199 × 2423 × 11590003319
2021-09-0924231159000331926,344406.24758.74

P-1 results:
 GHz-DaysworthFactor
probability
dateuseridcompidb1b2estagefactordigitsbits*spentsaved
2001-12-22T00:00:00twmossv4_computers1750004025000---0.248--2.576%
2002-02-17T00:00:00twmossv4_computers1750004025000---0.248--2.576%
2002-09-22T00:00:00ANONYMOUSv4_computers1700003570000---0.229--2.494%
2020-12-02T20:40:15masserManual testing5800001360000012---0.829--3.996%
2021-01-04T23:10:24masserManual testing7000000210000000---11.62--8.067%


P+1 Factoring results:
dateuseridcompidb1b2startfactorSmoothdigitsbits*ghz-days
2021-09-09T20:27:54masserManual testing10000005300000027P+12580.0602.764


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2000-08-10T00:00:00Net_Forcev4_computers?256--0.001--
2000-09-15T00:00:00ANONYMOUSv4_computers?265--0.265--
2014-07-22T14:26:00NesowaManual testing265266--0.530--
2015-08-23T20:37:00ThaManual testing266267--1.061--
2018-02-15T11:06:32ramgeisManual testing267268--2.121--
2018-02-15T11:06:32ramgeisManual testing268269--4.243--
2020-07-30T23:17:41masserManual testing269270--8.485--
2020-07-30T23:17:41masserManual testing270271--16.97--
2021-05-09T13:24:35masserManual testing271272--33.94--


ECM factoring results:

Old Calculation Method

Total ECM effort:4.541 GHz-days
Estimated T-Level:0.350
DigitsB1CurvesCompleteFacMiss
20110007 / 1000.07093.207%
25500007 / 2800.02597.527%

New Calculation Method

Total ECM effort:4.541 GHz-days
Estimated T-Level:0.350
DigitsB1CompleteFacMiss
20110000.22679.787%
25500000.02098.024%
302500000.00199.877%


ECM Summary

B1B2factorcurvesGHz-days
50000455000063.867
50000500000010.675


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
2002-01-02T00:00:00twmossv4_computers1591AC2F2694DD__6.252
2002-02-17T00:00:00twmossv4_computers1591AC2F2694DD__6.252
2002-11-02T00:00:00ANONYMOUSv4_computersF4E995759D6811CC6.252
2005-04-26T00:00:00Sturle Sundev4_computersF4E995759D6811CC6.252


PRP results:
Exponent "14091199" not found


P-1 factor-bounds graph:
B1 = 7000000, B2 = 210000000 (P-1 stage 2)
B1 = 7000000 (P-1 stage 1)
B1 = 1000000, B2 = 53000000 (P+1 stage 2)
B1 = 580000, B2 = 13600000 (P-1 stage 2)
B1 = 1000000 (P+1 stage 1)
B1 = 580000 (P-1 stage 1)
B1 = 175000, B2 = 4025000 (P-1 stage 2)
B1 = 170000, B2 = 3570000 (P-1 stage 2)
B1 = 175000 (P-1 stage 1)
B1 = 170000 (P-1 stage 1)
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TF factor-bounds graph:
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Last modified: 2021-09-09T20:27:54+00:00