is 2 3285229 - 1
has 988953 decimal digits
takes 0.345 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
factored, 0 LL tests remaining
ResidueStatus
L-L88B3097AA9A55DD5double-checked
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26936.340568.1159 %10000001199121001.13896.9020 %37.479470.3166 %
Target2641.083465.6250 %1700014000000.01411.6878 %1.097566.2052 %
Difference+5+35.2570+2.4909 %+983000+118512100+1.1249+5.2142%+36.3819+4.1114 %

Known prime factors (1 factor, 69.4 bits, 0.00211308% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
32852297895722927996826368632169.420120170054020539
3 × 11953 × 3351182521
2009-05-2311953335118252136.34027.80751.933

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2020-12-25JossManual testing109507109507---1.579%
2022-01-25JossManual testing1000000119912100--1.13910.499%


Trial Factoring results:
57585960616263646566676869
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2001-06-30David Campeauv4_computers212600.023
2009-04-02S485122USB-Z2602610.047
2022-04-07LordJuliusManual testing21262
2022-04-07LordJuliusManual testing262263
2022-04-07LordJuliusManual testing263264
2022-04-07LordJuliusManual testing264265
2022-04-07LordJuliusManual testing265266
2022-04-07LordJuliusManual testing266267
2021-05-21JossManual testing267268
2021-12-12JossManual testing268269


ECM factoring results:
Total ECM effort:0.299 GHz-days
DigitsB1CompleteFacMiss


ECM Summary

B1B2factorcurvesGHz-days
10.299


Lucas-Lehmer results:
dateuseridcompidres64spent (GHz-days)
1999-06-26akohlerv4_computers88B3097AA9A55DD50.345


PRP results:
dateuseridcompidcofactorsres64
2017-11-03Oliver KruseGTX-1
789572292799682636863
D574C8130A954563
2017-12-14kkmrkkblmbrbkc4.xlarge
789572292799682636863
D574C8130A954563


CERT results:
No CERT results for M3285229


P-1 factor-bounds graph:
B1 = 1000000, B2 = 119912100 (P-1 stage 2)
B1 = 1000000 (P-1 stage 1)
B1 = 109507 (P-1 stage 1)
103
104
105
106
103
104
105
106
107
108
109
1010
TF factor-bounds graph:
269
268
267
266
265
264
263
262
261
260
this exponent TF target: 64
TF double-checked to: 67
250
260
270
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Last modified: 2024-03-03T02:29:32+00:00