Problem 1164. Sum the Digits of a Number
Given an integer, sum the digits repeatedly until you end up with a single value less than 10.
For example, if you add the digits of the number 123456789, you get 1+2+3+4+5+6+7+8+9 = 45, and then 4+5 = 9
The input will be a string of digits. The output should be the scalar value of the repeated sum of digits.
Solution Stats
Problem Comments
-
1 Comment
RA
on 14 Jun 2014
Nice Problem.
Solution Comments
Show commentsProblem Recent Solvers275
Suggested Problems
-
Return the largest number that is adjacent to a zero
5212 Solvers
-
412 Solvers
-
330 Solvers
-
Solving Quadratic Equations (Version 1)
480 Solvers
-
356 Solvers
More from this Author3
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!