is 2 3424049 - 1
has 1030742 decimal digits
takes 0.360 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L1D90BF97A3371EC5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26934.867168.1159 %140000007000000007.823910.9054 %42.691171.5930 %
Target2641.039565.6250 %1900016000000.01601.8216 %1.055566.2512 %
Difference+5+33.8276+2.4909 %+13981000+698400000+7.8079+9.0838%+41.6356+5.3419 %

Known prime factors (1 factor, 70.2 bits, 0.00205092% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
342404913792680477305259548392270.224201408923723131
77681 × 2592769451
2022-04-1477681259276945169.78621.52440.180

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-06Carsten Kossendeymother15000210000--0.0041.509%
2011-11-02markrtiny21500048375006--0.0715.364%
2019-06-26BigBrotherWinston10000003000000012--0.3938.626%
2021-04-23axnManual testing14000000700000000--7.82415.137%
2022-05-11JossManual testing500000145208700--1.33710.115%
2022-09-20JossManual testing1000000145208700--1.41210.804%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2016-02-23Mark RoseManual testing212600.045
2009-03-24S485122USB-A2602610.045
2011-07-25Carsten KossendeyManual testing2612630.376
2015-02-07VictordeHollanderManual testing2632640.573
2015-02-07VictordeHollanderManual testing2642651.091
2015-04-11Gordon SpenceManual testing2652662.182
2017-02-05Gordon SpenceManual testing2662674.365
2018-11-26TJAOIManual testing2672688.730
2020-12-30axnManual testing26826917.46


ECM factoring results:
Total ECM effort:8.813 GHz-days
Estimated T-Level:21.085
DigitsB1CompleteFacMiss
20110002.3469.574%
25500000.21780.486%
302500000.01498.640%


ECM Summary

B1B2factorcurvesGHz-days
500005000000578.226
50000500000040.587


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-07-27Stephen Woodv4_computers1D90BF97A3371EC50.360


PRP results:
dateuseridcompidcofactorsres64
2022-04-20XZT3050Micro2
1379268047730525954839
10AB700F3059B212


CERT results:
dateuseridcompid
2022-04-22curtiscjckl124408l


P-1 factor-bounds graph:
B1 = 14000000, B2 = 700000000 (P-1 stage 2)
B1 = 14000000 (P-1 stage 1)
B1 = 1000000, B2 = 145208700 (P-1 stage 2)
B1 = 500000, B2 = 145208700 (P-1 stage 2)
B1 = 1000000, B2 = 30000000 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 500000 (P-1 stage 1)
B1 = 215000, B2 = 4837500 (P-1 stage 2)
B1 = 215000 (P-1 stage 1)
B1 = 15000, B2 = 210000 (P-1 stage 2)
B1 = 15000 (P-1 stage 1)
103
104
105
106
107
108
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
269
268
267
266
265
264
263
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=21.09 ~= 53-bit
250
260
270
280
JSON version of this page
Last modified: 2024-02-29T14:28:04+00:00