C program to check Armstrong number

Learn about C program to check Armstrong number in the below code example. Also refer the comments in the code snippet to get a detailed view about what’s actually happening.

Contents

C program to check Armstrong number

The below C program takes a number as user input and tests whether it is a Armstrong number.

Program:

 #include<stdio.h>
 int main()
 {
      int number, temp, rem, sum=0;

      printf("Enter number: ");
      scanf("%d",&number);

      temp=number;
      while( number!=0 )
      {
          rem = number%10;
          sum += (rem*rem*rem);
          number /= 10;
      }

      if(temp == sum)
          printf("%d is an Armstrong number.\n",temp);
      else
          printf("%d is not an Armstrong number.\n",temp);

      return 0;
 }

Output:

Enter number: 153
153 is an Armstrong number.

Hope above code works for you and Refer the below Related Codes to gain more insights. Happy coding and come back again.