//Find the prime number
#include<stdio.h>
void main()
{
int n,r,count;
printf("please enter a intger number:");
scanf("%d",&n);
count=0;
for(r=1;r<=n;r++)
{
if(n%r==0)
count=count+1;
}
if(count==2)
{
printf("%d is a prime number",n);
}
else
printf("%d is not a prime number",n);
}