is 2 2384411 - 1
has 717780 decimal digits
takes 0.161 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L346BA727672EA2AFdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26712.461767.1642 %30000001000000000.81158.5010 %13.273369.9555 %
Target2630.669465.0794 %100007000000.00471.2731 %0.674065.5239 %
Difference+4+11.7924+2.0848 %+2990000+99300000+0.8069+7.2278%+12.5993+4.4316 %

Known prime factors (1 factor, 76.9 bits, 0.00322435% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
23844111392157270887405912400732476.88229192896503316876
22 × 11 × 37 × 17931754608917
2016-02-1937179317546089176,418.495,700178,741

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-09-21ANONYMOUSv4_computers2048204800--0.0010.653%
2010-11-08JossManual testing1500015000--0.0020.496%
2010-11-15JossManual testing2000020000--0.0020.615%
2010-12-26markrtiny10000020750006--0.0214.310%
2014-09-11JossManual testing126918126918--0.0131.835%
2015-10-29mikrMSI300000010000000012--0.81211.564%
2018-09-28alpertronManual testing20000006000000012---10.518%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-03-01ANONYMOUSv4_computers212590.016
2016-02-23Mark RoseManual testing2592600.032
2009-01-15Sturle Sundegoldiek.ifi2602610.064
2012-06-01Sebastian HornbostelManual testing2612620.129
2013-12-04Jerry HallettManual testing2622630.412
2015-03-09VictordeHollanderManual testing2632640.823
2015-03-09VictordeHollanderManual testing2642651.567
2015-11-01ramgeisManual testing2652663.134


ECM factoring results:
Total ECM effort:8.847 GHz-days
Estimated T-Level:21.702
DigitsB1CompleteFacMiss
20110003.6512.597%
25500000.34071.154%
302500000.02297.862%
3510000000.00199.898%


ECM Summary

B1B2factorcurvesGHz-days
500005000000151.210
50000500000030.267
500007000000717.370


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-26ANONYMOUSv4_computers346BA727672EA2AF0.161


PRP results:
dateuseridcompidcofactorsres64
2017-10-12Oliver KruseGTX-1
139215727088740591240073
83EF7326CC56A5D6
2017-11-25kkmrkkblmbrbkc4.xlarge
139215727088740591240073
83EF7326CC56A5D6


CERT results:
No CERT results for M2384411


P-1 factor-bounds graph:
B1 = 3000000, B2 = 100000000 (P-1 stage 2)
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 3000000 (P-1 stage 1)
B1 = 2000000 (P-1 stage 1)
B1 = 100000, B2 = 2075000 (P-1 stage 2)
B1 = 126918 (P-1 stage 1)
B1 = 100000 (P-1 stage 1)
B1 = 20000 (P-1 stage 1)
B1 = 15000 (P-1 stage 1)
B1 = 2048, B2 = 204800 (P-1 stage 2)
B1 = 2048 (P-1 stage 1)
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TF factor-bounds graph:
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this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.7 ~= 55-bit
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Last modified: 2024-02-29T14:28:04+00:00