using System.Collections.Generic;
using System;

public class Hello
{
    static void Main()
    {
        var n = long.Parse(Console.ReadLine().Trim());
        getAns(n);
    }
    static void getAns(long n)
    {
        var d = PF(n);
        Console.WriteLine(d.Count <=2? "Yes":"No");
    }
    static Dictionary<long, int> PF(long n)
    {
        var d = new Dictionary<long, int>();
        for (long i = 2; i * i <= n; i++)
        {
            if (n % i != 0) continue;
            var x = 0;
            while (n % i == 0)
            {
                x++;
                n /= i;
            }
            d[i] = x;
        }
        if (n != 1) d[n] = 1;
        return d;
    }
}