import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n = sc.nextInt();
        int[] arr = new int[n];
        for (int i = 0; i < n; i++) {
            arr[i] = sc.nextInt();
        }
        Arrays.sort(arr);
        ArrayList<ArrayList<Integer>> lists = new ArrayList<>();
        for (int i = 0; i < n; i++) {
            lists.add(new ArrayList<>());
        }
        int max = 0;
        for (int i = 0; i < n; i++) {
            boolean flag = true;
            for (int j = max - 1; j >= 0 && flag; j--) {
                for (int x : lists.get(j)) {
                    if (arr[i] % x == 0) {
                        lists.get(j + 1).add(arr[i]);
                        max = Math.max(max, j + 2);
                        flag = false;
                        break;
                    }
                }
            }
            if (flag) {
                lists.get(0).add(arr[i]);
                max = Math.max(1, max);
            }
        }
        System.out.println(max);
    }
}