is 2 252449 - 1
has 75995 decimal digits
takes 0.001 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual267117.702773.1343%----117.702773.1343%18.1343%
PrimeNet2400.000055.0000%2600700000.000114.2254%0.000169.2254%14.2254%
GPU722440.000059.0909%45001100000.000110.1755%0.000169.2664%10.1755%
Difference+23+117.7026+14.0434%-4500-110000-0.0001-10.1755%+117.7026+3.8679%+3.8679%

Known prime factors (3 factors, 118.8 bits, 0.04705248% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
252449391295951928.544775
52 × 31
-25311.654e-102.061e-74.140e-7
2524491545553365771237.169306112
26 × 4783
2008-07-216447839.124e-82.613e-63.959e-6
25244994583286594994871653.07118733147407
32 × 13 × 59 × 97 × 101 × 277
2014-08-221012770.00868.998e-71.672e-6

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
252449604768774080222997272065.713
25244937010057076894069496771372581.614
25244914618351694248284416438359992890.240
25244957201018282533436808487281051674004936118.784
P-1 results:
Exponent "252449" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2008-07-21T09:15:00J FeitsmaManual testing??37.169121.87126e-80.0033.88760e-8
2014-08-22T10:16:00TJAOIManual testing??53.071160.0040.0030.008


ECM factoring results:
Total ECM effort:7.788 GHz-days
Estimated T-Level:26.586
DigitsB1CurvesCompleteFacMiss
2011000484 / 1004.8400.772%
2550000484 / 2801.72917.699%
30250000203 / 6400.31772.801%

ECM Summary

B1B2factorcurvesGHz-days
5000050000002811.680
250000250000001965.861
2500003835654170.246


Lucas-Lehmer results:
Exponent "252449" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-09-22T07:20:42Oliver KruseOllaptop
391295951
154555336577
9458328659499487
4498DAD22D34ED__no
2017-09-22T10:06:20Oliver KruseManual testing
391295951
154555336577
9458328659499487
4498DAD22D34ED__no
2017-10-12T16:50:49Oliver KruseGTX-04498DAD22D34ED__no
2017-11-06T17:26:26kkmrkkblmbrbkc4.xlarge
391295951
154555336577
9458328659499487
4498DAD22D34ED__no
2020-04-17T20:13:39Oliver KruseAddPrpType5
391295951
154555336577
9458328659499487
E94FE14AC5975A__no


P-1 factor-bounds graph:
100
101
102
103
100
101
102
103
104
TF factor-bounds graph:
267
2
220
230
240
250
260
270
280
290
2100
Last modified: 2021-04-04T14:59:20+00:00