# C Program to Check Armstrong Number?

CServer Side ProgrammingProgramming

A number is called an Armstrong number if the sum of cubes of digits of the number is equal to the number itself. It is a mathematical concept usually used in programming to build basic logic of the programmer

Input:370
Output:370 is an Armstrong Number

## Explanation

370 = 3*3*3 + 7*7*7 + 0*0*0
= 27 + 343 + 0
= 370

## Example

include <iostream>
using namespace std;
int main() {
int n, num, rem, sum = 0;
cin >> n;
num = n;
while(num != 0) {
digit = num % 10;
sum += digit * digit * digit;
num /= 10;
}
if(sum == n)
printf("%d is an Armstrong number.", n );
else
printf("%d is not an Armstrong number.",n);
return 0;
}


Published on 19-Aug-2019 11:47:26