Find all factorial numbers less than or equal to N

// { Driver Code Starts
#include<bits/stdc++.h> 
using namespace std; 

 // } Driver Code Ends


//User function Template for C++
class Solution
{
public:
    vector<long long> factorialNumbers(long long N)
    {
        // Write Your Code here
        vector<long long> vec;
        if(N==1){vec.push_back(1);}
        else{
            long long sum=1,i=1;
            while(sum<=N){
               vec.push_back(sum);
               i++;
               sum=sum*i;
            }
        }
        return vec;
    }
};

// { Driver Code Starts.
int main()
{
    int t;
    cin >> t;
    while (t--)
    {
        long long N;
        cin>>N;
        Solution ob;
        vector<long long> ans = ob.factorialNumbers(N);
        for(auto num : ans){
            cout<<num<<" ";
        }
        cout<<endl;
        
    }
    return 0;
}  // } Driver Code Ends