#define _USE_MATH_DEFINES
#include <bits/stdc++.h>
using namespace std;
signed main() {
	ios::sync_with_stdio(false);
	cin.tie(0);
	int n, k;
	cin >> n >> k;
	int ans = 0;
	auto cnt = [] (int x) {
		int c = 0;
		for (int p = 2; p * p <= x; p++) {
			c += x % p == 0;
			while (x % p == 0) {
				x /= p;
			}
		}
		c += x != 1;
		return c;
	};
	for (int i = 2; i <= n; i++) {
		ans += cnt(i) >= k;
	}
	cout << ans << '\n';
	return 0;
}