is 2 2096449 - 1
has 631095 decimal digits
takes 0.138 GHz-days to do one PRP test
Last-known PrimeNet details:
Exponent is not assigned to anyone
0 primality tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbability
Actual26714.173568.6567 %500000150000000.12305.1521 %14.296470.2716 %
Target2620.293066.1290 %90007000000.00441.4012 %0.297566.6036 %
Difference+5+13.8804+2.5277 %+491000+14300000+0.1185+3.7510%+13.9989+3.6679 %

Known prime factors (4 factors, 199.8 bits, 0.00953214% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
209644946121879825.45911
11
-1112.137e-121.473e-71.940e-7
20964491563783238091237.18637296
24 × 32 × 7 × 37
2008-07-1516379.369e-91.634e-63.104e-6
20964492978961832875321291858.04871047801136
24 × 13 × 23 × 457 × 32497
2015-08-05457324970.03540.00020.0003
20964496677113928871389631719112479.144159248184164541795
3 × 5 × 179 × 523 × 321751 × 352459
2016-01-2132175135245958,5900.03080.0624

11 Composite Factors:
P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-01-21alpertronManual testing500000150000001222479.1440.1238.227%


Trial Factoring results:
5758596061626364656667
 BitsFactor
dateuseridcompidfromtofactorbits*digitsGHz-days
2008-07-15J FeitsmaManual testing??
37.186
12
2015-08-05TJAOIManual testing258259*
58.048
18
0.001


ECM factoring results:
Total ECM effort:11.838 GHz-days
Estimated T-Level:22.011
DigitsB1CompleteFacMiss
20110004.2011.498%
25500000.40266.879%
302500000.02797.384%
3510000000.00199.870%


ECM Summary

B1B2factorcurvesGHz-days
50000500000060.510
50000599614470.644
500006750000141.361
500007000000141.385
500002702353571.711
622678904181506.226


Lucas-Lehmer results:
No L-L results for M2096449


PRP results:
dateuseridcompidcofactorsres64
2017-09-30alpertronManual testing
156378323809
297896183287532129
46121879
667711392887138963171911
EE894E600B199CC5
2017-10-21Oliver KruseGTX-0
46121879
156378323809
297896183287532129
667711392887138963171911
EE894E600B199CC5


CERT results:
No CERT results for M2096449


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
100
101
102
103
104
105
106
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
this exponent TF target: 62
TF double-checked to: 67
ECM T-Level=22.01 ~= 57-bit
250
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Last modified: 2024-03-13T02:15:48+00:00