C Program to Find Sum of Digits of a Number

C Program to Find Sum of Digits of a Number, let’s see how can we solve this problem in C Language.

Algorithm to Calculate Sum of Digits of a Number

• Our C program needs the number as its target. We’ll use scanf to accept it from the user, storing it in a variable named number
• Now we have to calculate the total no of digits present in the given number
• Extract each digit of the number by using the ‘%’ operator
• Add the extracted digit to the variable names sum
• Print the variable sum

C Program to Calculate Sum of Digits of a Number

    #include <stdio.h>
void main()
{
    int number, sum = 0, digits = 0;
    printf("Enter the number ");
    scanf("%d", &number);
    int temp = number;
    while (temp > 0)
    {
        digits++;
        temp /= 10;
    }
    for (int i = 1; i <= digits; i++)
    {
        int remainder = number % 10;
        sum += remainder;
        number /= 10;
    }
    printf("sum of the digits of given number = %d ", sum);
}

Output

Happy Coding

See Also

• Loops in C
• C Program to Check Whether a Number is Palindrome or not