Program To Check Whether A Number Is Prime or Not.

#include<stdio.h>
void main()
{
int n,i;
clrscr();
printf("Enter the Number :");
scanf("%d",&n);
i=2;
while(i<=n-1)
{
if(n%i==0)
{
printf("Number is not a prime number\n");
break;
}
i=i+1;
}
if(i==n)
printf("Number is a prime number");
}