is 2 2966599 - 1
has 893036 decimal digits
takes 0.252 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LEE25C03A7B7A325Edouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26940.243768.1159 %1200000360000000.38215.7377 %40.625769.9453 %
Target2641.199865.6250 %1200010000000.00811.3482 %1.207966.0884 %
Difference+5+39.0439+2.4909 %+1188000+35000000+0.3740+4.3895%+39.4178+3.8569 %

Known prime factors (1 factor, 83.7 bits, 0.00282156% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
2966599157574696676457574571890572683.7042655813891200960672
25 × 7 × 13 × 19 × 23 × 2087011444163
2022-11-29322087011444163660,33014,03326,209

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-12-13ANONYMOUSv4_computers2048204800--0.0020.567%
2003-12-23Team Prime Ribv4_computers1000010000--0.0010.312%
2010-10-29markrtiny9500019950006--0.0243.910%
2015-05-08VictordeHollanderManual testing10000002000000012--0.2517.943%
2021-11-24Aaron HavilandManual testing12000003600000012--0.5388.871%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-05-02ANONYMOUSv4_computers212600.026
2009-02-14Sturle Sundenardi.ifi2602610.052
2011-12-05markroldgamer2612620.104
2013-01-07dbaughManual testing2622630.331
2015-04-29VictordeHollanderManual testing2632640.662
2015-04-29VictordeHollanderManual testing2642651.259
2016-02-28ramgeisManual testing2652662.519
2017-12-03Gordon SpenceManual testing2662675.038
2018-12-25chuenkitManual testing26726810.08
2021-05-24TJAOIManual testing26826920.15


ECM factoring results:
Total ECM effort:14.325 GHz-days
Estimated T-Level:22.186
DigitsB1CompleteFacMiss
20110004.7210.890%
25500000.43764.590%
302500000.02897.276%
3510000000.00199.871%


ECM Summary

B1B2factorcurvesGHz-days
50000480000070.797
5000050000008810.10
50000500000050.580
50000675000070.936
50000700000070.953
50000715000070.964


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-26ANONYMOUSv4_computersEE25C03A7B7A325E0.252
2018-10-16kkmrkkblmbrbkoldEE25C03A7B7A325E0.252


PRP results:
dateuseridcompidcofactorsres64
2022-12-05Oliver KruseServer-Phi
15757469667645757457189057
CD2F87A65477DF05


CERT results:
dateuseridcompid
2022-12-10iwessrvwes28


P-1 factor-bounds graph:
B1 = 1200000, B2 = 36000000 (P-1 stage 2)
B1 = 1000000, B2 = 20000000 (P-1 stage 2)
B1 = 1200000 (P-1 stage 1)
B1 = 1000000 (P-1 stage 1)
B1 = 95000, B2 = 1995000 (P-1 stage 2)
B1 = 95000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 10000 (P-1 stage 1)
B1 = 2048 (P-1 stage 1)
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107
100
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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: 64
TF double-checked to: 67
ECM T-Level=22.19 ~= 57-bit
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Last modified: 2024-02-29T14:28:04+00:00