import java.io.*;
import java.util.*;

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        int[] values = new int[n];
        for (int i = 0; i < n; i++) {
            values[i] = sc.nextInt();
        }
        Arrays.sort(values);
        ArrayList<HashSet<Integer>> dp = new ArrayList<>();
        dp.add(new HashSet<>());
        for (int i = 0; i < n; i++) {
            boolean exist = false;
            for (int j = dp.size() - 1; j >= 0 && !exist; j--) {
                for (int x : dp.get(j)) {
                    if (values[i] % x == 0) {
                        if (j == dp.size() - 1) {
                            dp.add(new HashSet<>());
                        }
                        dp.get(j + 1).add(values[i]);
                        exist = true;
                        break;
                    }
                }
            }
            if (!exist) {
                dp.get(0).add(values[i]);
            }
        }
        System.out.println(dp.size());
    }
}
class Scanner {
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    StringTokenizer st = new StringTokenizer("");
    StringBuilder sb = new StringBuilder();
    
    public Scanner() throws Exception {
        
    }
    
    public int nextInt() throws Exception {
        return Integer.parseInt(next());
    }
    
    public long nextLong() throws Exception {
        return Long.parseLong(next());
    }
    
    public double nextDouble() throws Exception {
        return Double.parseDouble(next());
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}