#include <bits/stdc++.h>
using namespace std;
using ll = long long;

int main(){
    ll N;
    cin >> N;

    vector<int> P;
    for (int n = 2; n*n <= N; n++){
        while (N%n == 0){
            P.push_back(n);
            N /= n;
        }
    }

    if (N != 1) P.push_back(N);
    P.erase(unique(P.begin(), P.end()), P.end());
    cout << (P.size() <= 2? "Yes": "No") << endl;
}