#define _USE_MATH_DEFINES
#include<stdio.h>
#include<string>
#include<iostream>
#include<cctype>
#include<cstdio>
#include<vector>
#include<stack>
#include<queue>
#include <algorithm>
#include<math.h>
#include<set>
#include<map>
#include<iomanip>

//#include<bits/stdc++.h>


using namespace std;


int main() {
	
	int n, k;
	cin >> n >> k;
	int a = 1;
	for (int i = 2; i <= n / 2 + 1; i++) {
		if (n%i == 0) {
			a = max(a, n / i);
		}
	}
	cout << a << endl;
	return 0;

}