Write a C Program, Input 3 Digit number and find given number is An Armstrong or Not Armstrong.

 

An Armstrong number is defined as the sum of power of each digit to a n digit number is equal to that number.

 

3-digit: 153, 370, 371, 407

4-digit: 1634, 8208, 9474

 

Example 1 (3-digit number):

Number: 153

Digits: 1,5,3

Number of digits: 3

Calculation: 1³+5³+3³

                       1+125+27 = 153

 

Example 2 (4-digit number):

1Number: 1634

Digits: 1,6,3,4

Number of digits: 4

Calculation:  1⁴+6⁴+3⁴+4⁴

                       1+1296+81+256 =1634

#include<stdio.h>

main()

{

    int n,r,x,sum=0;

    printf("\nEnter Number : ");

    scanf("%d",&n);

    x=n;

    while(n!=0)

    {

r=n%10;

sum+=r*r*r;

n/=10;

    }

    printf("\n%d Sum of Cube = %d",x,sum);

    if(x==sum)

printf("\nThe Given %d no is Armstrong Number",x);

    else

printf("\nThe Given %d no is Not Armstrong Number",x);

}

Output