#include <bits/stdc++.h>
using namespace std;
#define ls u << 1
#define rs u << 1 | 1
#define LL long long
#define int long long
#define PII pair <int, int>
#define fi first
#define se second
#define pub push_back
#define pob pop_back
#define puf push_front
#define pof pop_front
#define lb lower_bound
#define ub upper_bound
#define i128 __int128
#define pcnt(x) __builtin_popcount(x)
#define mem(a,goal) memset(a, (goal), sizeof(a))
#define rep(x,start,end) for(int x = (start) - ((start) > (end)); x != (end) - ((start) > (end)); ((start) < (end) ? x ++ : x --))
#define aLL(x) (x).begin(), (x).end()
#define sz(x) (int)(x).size()
const int INF = 998244353;
const int mod = 1e9 + 7;
const int N = 100010;
int a[N];
void solve()
{
    int x, k;
    cin >> x >> k;
    if(x == 1 && k == 2)
    {
        cout << "YES" << '\n';
        return ;
    }
    if(k == 1)
    {
        if(x == 1)
        {
            cout << "NO" << '\n';
            return ;
        }
        for(int i = 2; i <= x / i; ++ i)
        {
            if(x % i == 0)
            {
                cout << "NO" << '\n';
                return ;
            }
        }
        cout << "YES" << '\n';
    }
    else cout << "NO" << '\n';
}

signed main()
{
    int t = 1;
    cin >> t;
    while (t --) solve();
    return 0;
}