Loading collection data...
Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
This comment is hidden because it contains spoiler information about the solution
Approved!
563 is a Wilson prime, so, yes. Your function returned false instead of true.
Random test failed With n = 563: expected false to equal true
Is this expected behavior?
You are rewriting the whole prototype chain, which you should not do.