#include <sstream>
#include <string>
#include <vector>
#include <map>
#include <algorithm>
#include <iostream>
#include <utility>
#include <set>
#include <cctype>
#include <queue>
#include <stack>
#include <cstdio>
#include <cstdlib>
#include <cmath>

#define INF 1000000000

using namespace std;
typedef long long ll;

int main(void) {
    int N, K;
    cin >> N >> K;
    for (int i = 2; i * i <= N; i++) {
        if (N % i == 0) {
            cout << N/i << endl;
            return 0;
        }
    }
    cout << 1 << endl;
    return 0;
}