#pragma region Macros
#include <bits/stdc++.h>
#include <atcoder/all>
#if defined(LOCAL) || defined(_DEBUG)
#include "debug.hpp"
#else
#define O(...)
#define START()
#define STOP()
#define MEMORY()
#endif
using namespace std;
#define REP(i, n) for(int i=0, i##_len=(n); i<i##_len; ++i)
#define REPR(i, n) for(int i=(n); i>=0; --i)
#define FOR(i, n, m) for(int i=(m), i##_len=(n); i<i##_len; ++i)
#define EACH(i, v) for(const auto& i : v)
#define ALL(x) (x).begin(),(x).end()
#define ALLR(x) (x).rbegin(),(x).rend()
template<class T, class U>bool chmax(T &a, const U &b) { if (a<(T)b) { a=(T)b; return 1; } return 0; }
template<class T, class U>bool chmin(T &a, const U &b) { if (b<(T)a) { a=(T)b; return 1; } return 0; }
#define vec vector
#define umap unordered_map
#define uset unordered_set
using ll = long long;
using ld = long double;
using P = pair<ll, ll>;
using Tup = tuple<ll, ll, ll>;
using vl = vec<ll>;
#define fi first
#define se second
#define el endl
constexpr ll INF = numeric_limits<ll>::max()/2-1;

template<class T>
istream &operator>>(istream &stream, vec<T>& o){REP(i, o.size())stream >> o[i];return stream;}
#define I(T, ...) ;T __VA_ARGS__;__i(__VA_ARGS__);
void __i() {}
template<class T, class... Ts> void __i(T&& o, Ts&&... args){cin >> o;__i(forward<Ts>(args)...);}
#pragma endregion

void Main();

int main(){
    std::cin.tie(nullptr);
    std::cout << std::fixed << std::setprecision(15);
    Main();
    MEMORY();
    return 0;
}

// 素因数分解
// O(√N)
// 複数回行うならosa_k法も検討
vec<P> primeFactorize(ll N) {
    vec<P> res;
    for (ll a = 2; a * a <= N; ++a) {
        if (N % a != 0) continue;
        ll ex = 0; // 指数
        // 割れる限り割り続ける
        while (N % a == 0) {
            ++ex;
            N /= a;
        }
        res.push_back({a, ex});
    }
    // 最後に残った数について
    if (N != 1) res.push_back({N, 1});
    return res;
}

void Main(){
    I(ll, n);
    auto t = primeFactorize(n);
    O(t);
    cout << ((t.size() <= 2) ? "Yes" : "No") << el;
}