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

#define ll long long

ll N;
int main()
{
  cin >> N;
  set<ll> factors;
  while (N%2==0)
  {
    factors.insert(2);
    N/=2;
  }
  
  for (ll i = 3; i * i <= N; i+=2)
  {
    while (N%i==0)
    {
      factors.insert(i);
      N/=i;
    }
  }

  if (N > 2) factors.insert(N);
  cout << (factors.size()<=2?"Yes":"No") << endl;
}