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Home / C Programs / C Program to check if number is even or odd

C Program to check if number is even or odd

By Chaitanya Singh

If a number is exactly divisible by 2 then its an even number else it is an odd number. In this article we have shared two ways(Two C programs) to check whether the input number is even or odd. 1) Using Modulus operator(%) 2) Using Bitwise operator.

Program 1: Using Modulus operator

/* Program to check whether the input integer number 
 * is even or odd using the modulus operator (%)
 */
#include<stdio.h>
int main()
{
   // This variable is to store the input number 
   int num;
 
   printf("Enter an integer: ");
   scanf("%d",&num);
 
   // Modulus (%) returns remainder
   if ( num%2 == 0 )
      printf("%d is an even number", num);
   else
      printf("%d is an odd number", num);
 
   return 0;
}

Output:
checking_even_odd_modulus_cmd

Program 2: Using Bitwise operator

/* Program to check if number is even or odd
 * using bitwise operator
 */
#include<stdio.h>
 
int main()
{
   int n;
 
   printf("Enter an integer: ");
   scanf("%d",&n);
 
   if ( n & 1)
      printf("%d is an odd number", n);
   else
      printf("%d is an even number", n);
 
   return 0;
}

Output:
checking_even_odd_bitwise

Posted Under: C Programs

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