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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.
Nice!
Very clever solution thanks!
Very clever way of getting the primes and keeping the multiples of primes out. Awesome code. Thank you. Taught me so much reading your code.