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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.
This is the only correct way of doing this. Counting divisors with linq should fail (there should be a test with number so large it runs out of time).
Not that I enjoyed writing this solution, horrible kata. ;p
What the hell! Genius! Where do they teach this, I want to sign up.