is 2 2404613 - 1
has 723861 decimal digits
takes 0.162 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-LC3597E38C2786640double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26712.357067.1642 %2000000600000000.50557.6168 %12.862569.6652 %
Target2630.663765.0794 %100007000000.00471.2753 %0.668465.5247 %
Difference+4+11.6933+2.0848 %+1990000+59300000+0.5008+6.3414%+12.1941+4.1405 %

Known prime factors (1 factor, 72.3 bits, 0.00300801% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
240461359399424372398966594812272.3311235114015693980
22 × 5 × 59 × 769 × 1361127169
2016-02-197691361127169397.717.264313.567

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2003-10-08ANONYMOUSv4_computers2048204800--0.0010.655%
2010-11-08JossManual testing1500015000--0.0020.497%
2010-11-16JossManual testing2000020000--0.0020.617%
2010-12-22markrtiny9500019237506--0.0204.212%
2014-02-24mikrMSI31028224343950812--0.51910.243%
2018-09-28alpertronManual testing20000006000000012---10.526%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-03-01foxkidv4_computers212590.016
2016-02-23Mark RoseManual testing2592600.032
2009-01-14Sturle Sundegigotte.ifi2602610.064
2012-06-03Sebastian HornbostelManual testing2612620.128
2013-12-04Jerry HallettManual testing2622630.408
2015-02-27VictordeHollanderManual testing2632640.816
2015-02-27VictordeHollanderManual testing2642651.554
2015-10-21ramgeisManual testing2652663.108


ECM factoring results:
Total ECM effort:19.224 GHz-days
Estimated T-Level:21.528
DigitsB1CompleteFacMiss
20110003.1924.108%
25500000.30673.668%
302500000.02098.053%


ECM Summary

B1B2factorcurvesGHz-days
500005000000151.211
50000500000030.267
50000406524525017.75


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-03-15foxkidv4_computersC3597E38C27866400.162


PRP results:
dateuseridcompidcofactorsres64
2017-10-13Oliver KruseGTX-1
5939942437239896659481
D7B52D2441381C7A
2017-11-26kkmrkkblmbrbkc4.xlarge
5939942437239896659481
D7B52D2441381C7A


CERT results:
No CERT results for M2404613


P-1 factor-bounds graph:
B1 = 3102822, B2 = 43439508 (P-1 stage 2)
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 3102822 (P-1 stage 1)
B1 = 2000000 (P-1 stage 1)
B1 = 95000, B2 = 1923750 (P-1 stage 2)
B1 = 95000 (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)
101
102
103
104
105
106
107
101
102
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
266
265
264
263
262
261
260
259
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.53 ~= 55-bit
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Last modified: 2024-02-29T14:28:04+00:00