is 2 3588917 - 1
has 1080372 decimal digits
takes 0.377 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L7695E2049B1E785Cdouble-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual2678.279467.1642 %1000001303648501.09615.9748 %9.375469.1261 %
Target2640.991865.6250 %2000020000000.01951.9793 %1.011266.3054 %
Difference+3+7.2876+1.5392 %+80000+128364850+1.0766+3.9955%+8.3642+2.8207 %

Known prime factors (1 factor, 72.9 bits, 0.00203177% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
358891789271292449039141034732272.9191243707954921208
23 × 73 × 37 × 13883 × 882367
2011-12-3013883882367413.460.00930.0137

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2009-07-10Carsten Kossendeymother20000245000--0.0051.727%
2011-12-30Squeeky_SquirrelP4_26002272.9190.0250.000%
2022-03-05JossManual testing9000090000--0.0141.450%
2022-03-22JossManual testing100000100000--0.0151.531%
2022-05-25JossManual testing100000130364850
skipped known factor: 8927129244903914103473
--1.3028.075%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
1999-07-12ANONYMOUSv4_computers212600.021
2009-03-14S485122USB-A2602610.043
2011-06-16Grant McCrackenthumper2612620.086


ECM factoring results:
Total ECM effort:0.299 GHz-days
Estimated T-Level:0.577
DigitsB1CompleteFacMiss
20110000.11589.102%
25500000.01198.938%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.299


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-12-01ANONYMOUSv4_computers7695E2049B1E785C0.377


PRP results:
dateuseridcompidcofactorsres64
2017-11-10Oliver KruseGTX-2
8927129244903914103473
C10EE75676800942
2017-12-18kkmrkkblmbrbkc4.xlarge
8927129244903914103473
C10EE75676800942


CERT results:
No CERT results for M3588917


P-1 factor-bounds graph:
B1 = 100000, B2 = 130364850 (P-1 stage 2)
B1 = 100000 (P-1 stage 1)
B1 = 90000 (P-1 stage 1)
B1 = 20000, B2 = 245000 (P-1 stage 2)
B1 = 20000 (P-1 stage 1)
103
104
105
103
104
105
106
107
108
109
TF factor-bounds graph:
262
261
260
this exponent TF target: 64
TF double-checked to: 67
ECM T-Level=0.58 ~= -15-bit
250
260
270
280
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Last modified: 2024-03-13T02:15:48+00:00