C Program to Check Armstrong Number

A number is called as Armstrong number if sum of cubes of digits of number is equal to the number itself. In this program we will check whether a number is Armstrong or not.

// C program to check Armstrong number 
#include <stdio.h>
#include <math.h>
int main()
{
    int numb, originalNumb, r, result = 0, n = 0 ;
    printf("Enter an integer: ");
    scanf("%d", &numb);
     originalNumb = numb;
    
    while (originalNumb != 0)
    {
        originalNumb /= 10;
        ++n;
    }
    originalNumb = numb;
    while (originalNumb != 0)
    {
        r = originalNumb%10;
        result += pow(r, n);
        originalNumb /= 10;
    }
    if(result == numb)
        printf("%d is an Armstrong number.", numb);
    else
        printf("%d is not an Armstrong number.", numb);
    return 0;
}

Output