// #define _GLIBCXX_DEBUG
#include <bits/stdc++.h>
using namespace std;
#include <atcoder/all>
using namespace atcoder;
using ll = long long;
#define rep(i,n) for (ll i = 0; i < (n); ++i)
using vl = vector<ll>;
using vvl = vector<vl>;
using P = pair<ll,ll>;
#define pb push_back
#define int long long
#define double long double
#define INF (ll) 3e18
// Ctrl + Shift + B コンパイル
// Ctrl + C 中断
// ./m 実行


signed main(){
  int n; cin >> n;
  set<int> st;
  for(int i = 2; i*i <= n; ++i){
    while(n % i == 0){
      st.insert(i);
      n /= i;
    }
  }
  if (n != 1) st.insert(n);
  if (st.size() <= 2) cout << "Yes" << endl;
  else cout << "No" << endl;
}