#include <iostream>
#include <vector>
using namespace std;
int main(){
	int N, K;
	cin >> N >> K;
	vector<int> f(N + 1, 0);
	f[1] = 0;
	int ans = 0;
	for (int i = 2; i <= N; i++){
		for (int j = 2; j <= i; j++){
			if (i % j == 0){
				int x = i;
				while (x % j == 0){
					x /= j;
				}
				f[i] = f[x] + 1;
				if (f[i] >= K){
					ans++;
				}
			}
		}
	}
	cout << ans << endl;
}