#include<bits/stdc++.h>
using namespace std;
using ll = long long;
#define rep(i,m,n) for(int i=m; i<n; ++i)
#define repl(i,m,n) for(ll i=m; i<n; ++i)
#define all(a) (a).begin(), (a).end()
#define rall(a) (a).rbegin(), (a).rend()

int main(){
    ll N;
    cin >> N;
    if(N == 1LL){
        cout << "Yes" << endl;
    }else{
        map<ll, ll> mp;
        for(ll p = 2LL; p*p <= N; ++p){
            if(N % p != 0LL) continue;
            ll ex = 0LL;
            while(N % p == 0LL){
                N /= p;
                ex++;
            }
            mp[p] = ex;
        }
        if(N != 1LL) mp[N] = 1LL;

        cout << (mp.size() <= 2 ? "Yes" : "No") << endl;
    }
    return 0;
}