Armstrong Number Check in C

✅ Armstrong Number Check in C

#include<stdio.h>
int main( )
{
    int num, remainder, temp, sum = 0;
    printf("Enter the number:\n");
    scanf("%d", &num);
    temp = num;
    while (num > 0)
    {
        remainder = num % 10;
        sum = sum + (remainder * remainder * remainder);
        num = num / 10;
    }
    if (temp == sum)
    {
        printf("%d is armstrong:\n", temp);
    }
    else
    {
        printf("%d is not armstrong:\n", temp);
    }
}
  

📘 Explanation:

An Armstrong number (also known as a narcissistic number) is a number that is equal to the sum of the cubes of its digits.

• The user is prompted to enter an integer.
• Each digit is separated using modulus (%) and divided out using division (/).
• The cube of each digit is added to a sum.
• Finally, if sum == original number, it is an Armstrong number.

Example: 153 → 1³ + 5³ + 3³ = 1 + 125 + 27 = 153 ✔️

💻 Sample Output:

Enter the number:
153
153 is armstrong:
  

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