Primenumber.java

import java.util.Scanner;

class Main {
    public static void main(String[] args) {
        Scanner s=new Scanner(System.in);
        int n,count=0;
        System.out.println("Enter n value\n");
        n=s.nextInt();
        int[]array=new int[n];
        System.out.println("Enter elments:");
        for(int i=0;i<n;i++)
        {
            array[i]=s.nextInt();        
            
        }
        for(int i=0;i<n;i++)
        {
            int factors=0;
            int number=array[i];
            
            if(number<=1)
            {
                continue;
            }
            else
            {
                for(int j=1;j<=number;j++)
                {
                    if(number%j==0)
                    {
                        factors++;
                    }
                }
            }
            if(factors==2)
            {
                count++;
            }
        }
        System.out.println(count);
    }
}