Do you know what is interesting about the number 1729?
That’s right: it’s the third Zeisel number, a number given by 
, where 
and 
are the distinct prime factors, related by the recurrence relation 
. For example, A and B are 1 and 6 for 1729 since 1+6 = 7, 7+6 = 13, 13+6 = 19, and 
.
, where and are the distinct prime factors, related by the recurrence relation . For example, A and B are 1 and 6 for 1729 since 1+6 = 7, 7+6 = 13, 13+6 = 19, and .Write a function to determine whether a number is a Zeisel number. If it is, return the values of A and B. If not, set A and B to NaN.
Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers7
Suggested Problems
-
Return a list sorted by number of occurrences
2890 Solvers
-
Arrange Vector in descending order
13358 Solvers
-
Arrange vector in ascending order
817 Solvers
-
385 Solvers
-
925 Solvers
More from this Author323
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
In Firefox and Bing, the TeX writing is displaced below the rest of the line. Does anyone have a fix?
@Chris I'm seeing that too (using Chrome). I guess it's a server-side problem.