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

public class Main {
    public static void main(String[] args) throws Exception {
        Scanner sc = new Scanner();
        int n = sc.nextInt();
        ArrayList<HashSet<Integer>> list = new ArrayList<>();
        list.add(new HashSet<>());
        for (int i = 0; i < n; i++) {
            int target = sc.nextInt();
            int left = -1;
            int right = list.size();
            while (right - left > 1) {
                boolean enable = false;
                int m = (left + right) / 2;
                for (int x : list.get(m)) {
                    if (target > x && target % x == 0) {
                        enable = true;
                        break;
                    }
                }
                if (enable) {
                    left = m;
                } else {
                    right = m;
                }
            }
            if (right == list.size()) {
                list.add(new HashSet<>());
            }
            list.get(right).add(target);
        }
        System.out.println(list.size());
    }
}

class Utilities {
    static String arrayToLineString(Object[] arr) {
        return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n"));
    }
    
    static String arrayToLineString(int[] arr) {
        return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new));
    }
}
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 int[] nextIntArray() throws Exception {
        return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray();
    }
    
    public String next() throws Exception {
        while (!st.hasMoreTokens()) {
            st = new StringTokenizer(br.readLine());
        }
        return st.nextToken();
    }
    
}