How To Chek Prime Number In Programming C

How To Chek Prime Number In Programming C- today we are going to learn a program that is able to show a number from user is prime or not a prime number. so this is about C program to check whether a number is prime or not.

Prime number cheking program in C programming

/* C program to check whether a number is prime or not. */
#include <stdio.h>
void main()
{
int n, i,x=0;
printf("Enter a positive integer: ");
scanf("%d",&n);
for(i=2;i<=n/2;++i)
{
if(n%i==0)
{
x=1;
break;
}
}
if (x==0)
printf("%d is a prime number.",n);
else
printf("%d is not a prime number.",n);
}