import java.io.*;

class  CheckPrimeNumber
{
    static boolean isPrime(int number){
          boolean isPrime=false;
          int i=(int) Math.ceil(Math.sqrt(number));
          while (i>1){
             if((number!=i) && (number%i==0)){
                isPrime=false;
                break;
             }
             else if (!isPrime)
             isPrime=true;
             --i;
          }
          return isPrime;
       }
    public static void main(String[] args) throws Exception
    {
        BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        System.out.println("Enter Number:");
        int num=Integer.parseInt(br.readLine());
        if(isPrime(num)){
            System.out.println("Number is Prime!");
        }
        else{
            System.out.println("Number is not prime!");
        }
    }
}

import java.io.*; class prime { public static void main(String args[]) { try { int n,i,flag=0; BufferedReader br=new BufferedReader(new InputStreamReader(System.in)); printf("Enter Nmber:"); n=Integer.parseInt(br.readLine()); for(i=2;i

}

}

import java.io.*;

class prime {

public static void main(String args[])
{
    try
    {
       int n,i,flag=0;
       BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
        printf("Enter Nmber:");
        n=Integer.parseInt(br.readLine());
        for(i=2;i<n;i++)
        {
            if(n%i==0)
            {
                flag++;
            }
        }
        if(flag==0)
         {
            System.out.println("Given number is prime");
         }
         else
         {
             System.out.println("Given number is not prime");
          }
    }
    catch(Exception e)
    {
        System.out.println(e);
    }

}

}