#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include <cmath>

#define INF 1000000000

using namespace std;
typedef long long ll;

const int MAXN = 2001000;
int cnt[MAXN];

int n, k;

void init() {
    for (int i = 2; i < MAXN; i++) {
        if (cnt[i] == 0) {
            cnt[i] = 1;
            for (int j = 2; j * i < MAXN; j++) {
                cnt[i*j]++;
            }
        }
    }
}

int main(void) {
    init();
    cin >> n >> k;
    int ans = 0;
    for (int i = 2; i <= n; i++) {
        if (cnt[i] >= k) ans++;
    }
    cout << ans << endl;
    return 0;
}