import java.util.Scanner;

public class Yukicoder106 {

	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		int n = sc.nextInt();
		int k = sc.nextInt();
		int res = 0;
		for (int i = 2; i <= n; i++) {
			if (divDistinctNum(i) == k) res++;
		}
		System.out.println(res);
	}

	public static long divDistinctNum(long num) {
		long res = 1, buf = 0, dist = 0;
		for (long i = 2; i <= num; i++) {
			if (num % i == 0) {
				dist++;
				buf = 0;
				do {
					num /= i;
					buf++;
				} while (num % i == 0);
				res *= (buf + 1);
			}
		}
		return dist;
	}
}