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C program to check if number is odd or even

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mhmadesk
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2022-05-19
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Write program is to check whether the number provided by the user is even or odd. 
As you aware that even numbers are completely divisible by zero i;e 
they leave remainder zero when divided by two. 
On the other hand, odd numbers are not completely divisible by two. So, 
we can make use of the remainder operator(%) in c to check whether a number is odd or even.
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mhmadesk
2022-05-19
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C program to check if number is odd or even - Source code

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

Program Output

 

 

Case 1:

Enter an integer: 6723
6723 is an odd number


Case 2:

Enter an integer: 4578
4578 is an even number

Program Explanation

Modulus operator in C programming language, denoted by %, returns the remainder after the division operation. Here we have perform the modulus operator on the number provided by the user and checked whether it is equal to zero(n%2 == 0). The if statement is executed automatically if the expression inside it returns true value. Otherwise, the else statement is executed.

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