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

#define fastnuces            \
    ios::sync_with_stdio(0); \
    cin.tie(0);              \
    cout.tie(0);             \
    int t = 1;

void solve()
{
    int x;
    cin >> x;
    map<int, int> freq;
    int i = 2;
    while (x != 1)
    {
        if (x % i == 0)
        {
            freq[i]++;
            x /= pow(i, log(x) / log(i));
        }
        i++;
        if (freq.size() > 2)
        {
            cout << "No";
            return;
        }
    }
    cout << "Yes";
}

signed main()
{
    fastnuces;
    // cin >> t;
    while (t--)
    {
        solve();
    }
    return 0;
}