is 2 1699517 - 1
has 511606 decimal digits
takes 0.080 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LC7DFBBBDDD65DE81double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26835.071769.1176 %100000002000000001.38889.1079 %36.460571.9304 %
Target2610.180765.5738 %70005000000.00231.3012 %0.183166.0217 %
Difference+7+34.8909+3.5439 %+9993000+199500000+1.3865+7.8067%+36.2774+5.9087 %

Known prime factors (1 factor, 77.7 bits, 0.00457016% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
16995172405429972503290842354172477.67170768046818692924
22 × 3 × 42457 × 138901411661
2019-08-274245713890141166120,442516.43964.54

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2011-01-27JossManual testing5000050000--0.0041.406%
2011-02-11Carsten Kossendeymother9000014850006--0.0114.701%
2014-03-31JossManual testing100000100000--0.0082.011%
2014-05-01ANONYMOUSManual testing150000150000--0.0122.423%
2014-10-01JossManual testing187766187766--0.0152.670%
2015-01-05JossManual testing281649281649--0.0223.147%
2015-02-02JossManual testing309813309813--0.0243.266%
2015-02-15VictordeHollanderManual testing1000000020000000012--1.60114.833%


Trial Factoring results:
575859606162636465666768
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1998-02-19ANONYMOUSv4_computers212560.006
1998-11-21ANONYMOUSv4_computers212570.011
2003-02-16ANONYMOUSv4_computers212580.023
2010-04-26Architects Cubedm1_tt2602610.090
2010-10-04GrunwalderGIMPManual testing212630.939
2016-02-23Mark RoseManual testing2582630.826
2015-01-30VictordeHollanderManual testing2632653.354
2015-10-13ramgeisManual testing2652664.397
2017-09-01TJAOIManual testing2662678.794
2019-06-17TJAOIManual testing26726817.59


ECM factoring results:
Total ECM effort:32.640 GHz-days
Estimated T-Level:25.795
DigitsB1CompleteFacMiss
201100010.6560.002%
25500001.52021.882%
302500000.15985.300%
3510000000.01398.712%


ECM Summary

B1B2factorcurvesGHz-days
500005000000573.317
250000250000004814.27
250000400000004115.06


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-02-19ANONYMOUSv4_computersC7DFBBBDDD65DE810.080
1999-04-13ANONYMOUSv4_computersC7DFBBBDDD65DE810.080
1999-08-31ANONYMOUSv4_computersC7DFBBBDDD65DE810.080
1999-08-31ANONYMOUSv4_computersC7DFBBBDDD65DE810.080
2015-07-19MadPooManual testingC7DFBBBDDD65DE810.092


PRP results:
dateuseridcompidcofactorsres64
2019-08-27nordinordiputer
240542997250329084235417
BF0671D53455C096
2019-08-28kkmrkkblmbrbkc5.large
240542997250329084235417
BF0671D53455C096


CERT results:
No CERT results for M1699517


P-1 factor-bounds graph:
B1 = 10000000, B2 = 200000000 (P-1 stage 2)
B1 = 10000000 (P-1 stage 1)
B1 = 309813 (P-1 stage 1)
B1 = 281649 (P-1 stage 1)
B1 = 187766 (P-1 stage 1)
B1 = 90000, B2 = 1485000 (P-1 stage 2)
B1 = 150000 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 50000 (P-1 stage 1)
103
104
105
106
107
103
104
105
106
107
108
109
1010
1011
1012
TF factor-bounds graph:
268
267
266
265
263
261
258
257
256
this exponent TF target: 61
TF double-checked to: 67
ECM T-Level=25.79 ~= 69-bit
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00