#include <bits/stdc++.h>

using namespace std;
using ll = long long;
using P = pair<int, int>;

auto factorize(ll n) {
    vector<P> res;
    for (ll i = 2; i*i <= n; ++i) {
        if (n%i != 0) continue;
        res.emplace_back(i, 0);
        while (n%i == 0) {
            n /= i;
            res.back().second++;
        }
    }
    if (n != 1) res.emplace_back(n, 1);
    return res;
}

int main() {
    ll n;
    cin >> n;
    
    auto fs = factorize(n);
    if (fs.size() <= 2) puts("Yes");
    else puts("No");
    
    return 0;
}