is 2 2017567 - 1
has 607349 decimal digits
takes 0.133 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
Actual26714.727668.6567 %500000150000000.12305.1284 %14.850670.2641 %
Target2620.304566.1290 %80006000000.00381.2730 %0.308366.5602 %
Difference+5+14.4231+2.5277 %+492000+14400000+0.1191+3.8555%+14.5422+3.7039 %

Known prime factors (1 factor, 32.1 bits, 0.00159003% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
201756745395257511032.0801125
32 × 53
-1251253.526e-101.192e-52.425e-5

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2016-03-17alpertronManual testing5000001500000012
skipped known factor: 4539525751
---8.193%


Trial Factoring results:
5758596061626364656667
No TF results for M2017567


ECM factoring results:
Total ECM effort:45.500 GHz-days
Estimated T-Level:25.847
DigitsB1CompleteFacMiss
201100011.3180.001%
25500001.61519.891%
302500000.16984.409%
3510000000.01498.631%


ECM Summary

B1B2factorcurvesGHz-days
500005000000483.564
50000607685270.644
50000707775470.602
250000400000008940.69


Lucas-Lehmer results:
No L-L results for M2017567


PRP results:
dateuseridcompidcofactorsres64
2017-10-05Oliver KruseGTX-0
4539525751
3D07298F44D77B84
2017-11-13kkmrkkblmbrbkc4.xlarge
4539525751
3D07298F44D77B84


CERT results:
No CERT results for M2017567


P-1 factor-bounds graph:
B1 = 500000, B2 = 15000000 (P-1 stage 2)
B1 = 500000 (P-1 stage 1)
101
102
103
104
105
106
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=25.85 ~= 69-bit
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Last modified: 2024-03-13T02:15:48+00:00