Thank you and sorry about it, it was my first comment ever, I research about my comment and seems like my mistake was to write div.get(0) == div.get(1) instead of something like div.get(0).compareTo(div.get(1)) == 0

Hi Guys!

I need some help, I'm not an expert in java but I'm not sure what is happening about this code, for several prime numbers is working but for instance for the prime number 6491 I'm getting something strange when I run the code. This is my actual code

As this number is prime then the List div is going to have just two elemens 6491 and 6491 but when I compare them java is saying its comparisson is false when should be true, could some one tell me please if I'm missing something or I did something wrong?, thank you in advance

 List<Long> divs(long n){
    long half = n / 2 + (n % 2 == 0 ? 1 : 0);
    List<Long> div = new ArrayList<Long>();
    for(long i = 2; i < half; i++){
      if(n % i == 0){
        div.add(i);
        div.add(n / i);
        break;
      }
    }
    return div;
  }
  
  public void solve(final long n){
    if(n == 1){
      System.out.println(-1);
      return;
    }
    List<Long> div = divs(n*n);
//    System.out.println(div.get(0)+" "+ div.get(1)+" "+(div.get(0) == div.get(1)));
    if(div.get(0) == div.get(1)){
      System.out.println(n + " " + (n + 1) + " " + (n * (n+1)));
    }
    else{
      System.out.println(n + " " + (n+div.get(0)) + " " + (n+div.get(1)));
    }
    return;
  }