I have a same problem :/

Can you tell me how you think "witouth memorization" because the expexted number is nth value in "Hamming" array?

There is copied BigNumber class from declaration, and on bottom just use that.
Kata is something which we should use for interesting study, not for cheating bro.

Can anyone explain this?

This is not solution for problem, this is the cheat for test...

I feel just like you...

I think this is so easy for 5kyu , this kata is for 7kyu :)

Thanks a lot..That's it :)

This is best solution definitly