prime numbers c
#include<stdio.h>
void main()
{
int num;
int prime = 1;
printf("Enter a number = ");
scanf("%d",&num);
for(int i = 2; i < num; i++)
{
if(num % i == 0)
{
prime = 0;
break;
}
}
if(prime == 1 && num>0 && num !=1)
{
printf("%d is a prime number.", num);
}
else
{
printf("%d isn't a prime number.", num);
}
}