package 練習;

import java.util.Date;
import java.util.Scanner;
public class main{
	public static void main(String[] args){
		long exec_time=new Date().getTime();
		Scanner sc=new Scanner(System.in);
		long w=sc.nextLong();
		long d=sc.nextLong();
		long done=0;
		
		for(long i=d;i>1;i--){
			w-=(long)w/(i*i);
		}
		System.out.println(w);
		System.err.println(new Date().getTime()-exec_time+"ms");
		
	}
}