Big number in C++

#include "string"
    #include "iostream"
    #include "bigint/NumberlikeArray.hh"
    #include "bigint/BigUnsigned.hh"
    #include "bigint/BigInteger.hh"
    #include "bigint/BigIntegerAlgorithms.hh"
    #include "bigint/BigUnsignedInABase.hh"
    #include "bigint/BigIntegerUtils.hh"
    using namespace std;

    int main() {

        //unsigned long int num = 13195;
        //unsigned long long int num = 600851475143;
        BigInteger num = 13195;
        int divider = 2;

        //num = 600851475143;

        while (1) {
            if ((num % divider) == 0) {
                cout << divider << 'n';
                num /= divider;
            }
            else
                divider++;

            if (num == 1)
                break;
        }




    }

#include <iostream>

int main()
{
    long long num = 600851475143LL;

    std::cout << num;
}

unsigned long long int num = 600851475143ULL;