using System;
using System.Collections;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.Text;
using System.Text.RegularExpressions;
using System.Linq;

class Magatro {
    static int N = int.Parse(Console.ReadLine());
    static int[] x = Console.ReadLine().Split(' ').Select(s => int.Parse(s)).ToArray();
    static void Main() {
        Array.Sort(x);
        int[] dp = new int[N + 1];
        for(int i = 0; i <= N; i++) {
            if (i == 0) {
                dp[i] = 0;
                continue;
            }
            bool a = true;
            int max = 0;
            for (int j = 0; j <=i-2; j++) {
                
                if (x[i - 1] % x[j] == 0) {
                    max = Math.Max(max, dp[j + 1]);
                    a = false;
                   
                }
                
            }
            if (a) {
                dp[i] = 1;
            }
            else {
                dp[i] = max + 1;
            }
        }

        Console.WriteLine(dp.Max());
    }

    

}