is 2 2453497 - 1
has 738577 decimal digits
takes 0.170 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
Actual26712.110867.1642 %2000000600000000.51907.6325 %12.629869.6704 %
Target2630.650565.0794 %100008000000.00531.3337 %0.655865.5451 %
Difference+4+11.4603+2.0848 %+1990000+59200000+0.5136+6.2988%+11.9740+4.1253 %

Known prime factors (1 factor, 23.8 bits, 0.00097051% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
245349714720983823.8113
3
-134.558e-131.115e-72.047e-7

P-1 results:
dateusercompB1B2BSstagefactordigitsbits*GHz-daysFac Prob
2018-09-28alpertronManual testing20000006000000012
skipped known factor: 14720983
---10.546%


Trial Factoring results:
5758596061626364656667
No TF results for M2453497


ECM factoring results:
Total ECM effort:24.466 GHz-days
Estimated T-Level:21.261
DigitsB1CompleteFacMiss
20110002.6157.314%
25500000.25277.707%
302500000.01698.383%


ECM Summary

B1B2factorcurvesGHz-days
50000500000030.268
50000442628525024.20


Lucas-Lehmer results:
No L-L results for M2453497


PRP results:
dateuseridcompidcofactorsres64
2017-10-13Oliver KruseGTX-2
14720983
C16F85C98EFAEBB8
2017-11-28kkmrkkblmbrbkc4.xlarge
14720983
C16F85C98EFAEBB8


CERT results:
No CERT results for M2453497


P-1 factor-bounds graph:
B1 = 2000000, B2 = 60000000 (P-1 stage 2)
B1 = 2000000 (P-1 stage 1)
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105
106
107
100
101
102
103
104
105
106
107
108
TF factor-bounds graph:
this exponent TF target: 63
TF double-checked to: 67
ECM T-Level=21.26 ~= 54-bit
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Last modified: 2024-03-13T02:15:48+00:00