Pursuant to the first problem in this series, this one involves checking for divisibility by 9.
Write a function to determine if a number is divisible by 9. This can be done by the following method:
- Sum the digits of the number. As with methods for other numbers, this summing step can be applied recursively until a single-digit number results. If the resulting number is divisible by nine, then so is the original number.
Previous problem: divisible by 8. Next problem: divisible by 10.
Solution Stats
Problem Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers275
Suggested Problems
-
Select every other element of a vector
36180 Solvers
-
7467 Solvers
-
Longest run of consecutive numbers
6445 Solvers
-
Generate N equally spaced intervals between -L and L
943 Solvers
-
855 Solvers
More from this Author139
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
