How to find the number is Harshad number or not in C:-

In this program we will discuss of a number is a Harshad number or not in C programming. In mathematics, a Harshad number is a number that is divisible by the sum of its digits. We use a while loop statement with the following conditions. Input consists of 1 integer.

ALGORITHMS:-

Step 1- Enter the number to be check.
Step 2- store the number in a temporary variable.
Step 3- Initialise the while loop until the temp is not equal to zero
     (i) Calculate the remainder of the temp, divided with the 10 and store in digit
     (ii)  add the digit with sum and store it in the sum.
     (ii) divide the temp with the 10 and store in the temp;
Step 4- find the modulus of the number with sum and store in the res;
Step 5- if res equal to zero then a given number is a Harshad number else the given number is not a Harshad number.
Step 6- Stop.

  Code:-

#include<stdio.h>

int main()

{

     //To initialize of variable

     int number,temp,sum = 0, digit, res;

    printf("enter any number : "); 

    scanf("%d",&number);

    //store in temporary variable

    temp = number;

   //use while loop with this condition

   while(temp!=0)

   {

       //to find last digit

        digit=temp % 10;

      //sum+=digit

        sum = sum + digit;

     //temp/=10

        temp = temp / 10;

   }

   res = number % sum;

   //check result is equal is to 0

   if(res == 0)

      //display

       printf("%d is Harshad Number",number);

   else

      //display

      printf("%d is not Harshad Number",number);

  return 0;

} 

OUTPUT:-

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