#include <bits/stdc++.h>
using namespace std;
#define all(v) (v).begin(),(v).end()
using ll = long long;

int main() {
    ll n, N = 200001, M = 400001, ans = 0; cin >> n;
    vector<ll> B(N, 0);
    for(int i = 0; i < n; i ++) {
        ll a, b;
        cin >> a >> b;
        if(b <= B[a]) ans = max(ans, b);
        else ans = max(ans, B[a]), B[a] = b;
    }
    vector<pair<ll, ll>> v;
    for(ll i = 1; i < N; i ++) if(B[i]) v.push_back({i * B[i], i});
    sort(all(v), [&](pair<ll, ll> a, pair<ll, ll> b){return a > b;});
    vector<ll> exist(M, 0);
    for(auto [ab, a] : v) {
        for(ll i = a; i < M; i += a) {
            if(exist[i]) ans = max(ans, ab / i);
            exist[i] = 1;
        }
    }
    cout << ans << endl;
    return 0; 
}