C Program to find sum of digits

by Krishna

Posted on 27 Jul 2018 Category: C Views: 1531

C Program to find sum of digits

In this program, we will see a C program to calculate the sum of digits of a number. In this program, we will use modulus operator (%) to extract individual digits of a number and keep on adding them. This program can also be done withput using % modulus operator. 

#include <stdio.h>
 
int main()
{
   int n, t, sum = 0, remainder;
 
   printf("Enter the number :");
   scanf("%d", &n);
 
   t = n;
 
   while (t != 0)
   {
      remainder = t % 10;
      sum       = sum + remainder;
      t         = t / 10;
   }
 
   printf("Sum of digits   = %d\n",  sum);
 
   return 0;
}

OUTPUT