Find 445 is a prime number or no

public class Prime 
{

 public static void main(String[] args) 
{
  int temp, num;
  boolean isPrime = true;
  Scanner in = new Scanner(System.in);
  num = in.nextInt();
  in.close();
  for (int i = 2; i= num/2; i++) 
{
   temp = num%i;
   if (temp == 0) 
{
    isPrime = false;
    break;
   }
  }
  if(isPrime) 
   System.out.println(num + "number is prime");
   else 
    System.out.println(num + "number is not a prime");
   
  
 }

}