import java.util.Arrays;
import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner stdin = new Scanner(System.in);
        
        int n = stdin.nextInt();
        int[] x = new int[n];
        for (int i = 0; i < n; i++) {
            x[i] = stdin.nextInt();
        }
        
        Arrays.sort(x);
        int[] dp = new int[n];
        Arrays.fill(dp, 1);
        for (int i = 0; i < n; i++) {
            for (int j = i + 1; j < n; j++) {
                if (x[j] % x[i] == 0) {
                    dp[j] = Math.max(dp[i] + 1, dp[j]);
                }
            }
        }
        
        int ans = Arrays.stream(dp).max().getAsInt();
        System.out.println(ans);
    }
}