is 2 2359603 - 1
has 710312 decimal digits
takes 0.159 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LF9B6D39C9519E3F9double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26950.596168.1159 %30000001000000000.81157.2168 %51.407770.4170 %
Target2620.260464.5161 %1300011000000.00711.8370 %0.267465.1680 %
Difference+7+50.3358+3.5998 %+2987000+98900000+0.8045+5.3798%+51.1402+5.2490 %

Known prime factors (1 factor, 82.7 bits, 0.00350451% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
235960378144703817015627595686392582.6921655886685535991173
53 × 79 × 395482848229279
2021-07-2579395482848229279415,0982,110,6483,942,103

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-09-21ANONYMOUSv4_computers2048204800--0.0010.794%
2010-11-03JossManual testing2000020000--0.0020.725%
2010-12-23Oscar Östlin7501175011--0.0081.612%
2011-01-23Oscar Östlin9000018225006--0.0194.605%
2014-08-07JossManual testing117201117201--0.0122.010%
2014-10-22JossManual testing144402144402--0.0152.214%
2015-08-18mikrMSI300000010000000012--0.81212.429%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2016-02-23Mark RoseManual testing212600.065
2009-01-17Sturle Sundekraus.ifi2602610.065
2012-05-30Sebastian HornbostelManual testing2612620.130
2013-12-04Jerry HallettManual testing2622630.416
2015-03-09VictordeHollanderManual testing2632640.832
2015-03-09VictordeHollanderManual testing2642651.583
2015-10-29ramgeisManual testing2652663.167
2017-06-13Gordon SpenceManual testing2662676.334
2019-04-22TJAOIManual testing26726812.67
2021-06-10TJAOIManual testing26826925.34


ECM factoring results:
Total ECM effort:13.031 GHz-days
Estimated T-Level:22.623
DigitsB1CompleteFacMiss
20110005.6650.347%
25500000.52559.177%
302500000.03396.744%
3510000000.00299.845%


ECM Summary

B1B2factorcurvesGHz-days
50000500000014012.35
50000620000070.684


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1998-03-09ANONYMOUSv4_computersF9B6D39C9519E3F90.159
1999-05-30Moopsv4_computersF9B6D39C9519E3F90.159
2018-05-10kkmrkkblmbrbkoldF9B6D39C9519E3F90.159


PRP results:
dateuseridcompidcofactorsres64
2021-07-27kutensryzen2
7814470381701562759568639
801BBE0F17BFD90F


CERT results:
dateuseridcompid
2021-07-27Yoonerica


P-1 factor-bounds graph:
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 90000, B2 = 1822500 (P-1 stage 2)
B1 = 144402 (P-1 stage 1)
B1 = 117201 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 75011 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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1010
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TF factor-bounds graph:
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268
267
266
265
264
263
262
261
260
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=22.62 ~= 59-bit
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Last modified: 2024-02-09T03:30:02+00:00