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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 comment is hidden because it contains spoiler information about the solution
This comment is hidden because it contains spoiler information about the solution
You either write a naïve brute-force solution and just filter the first 10000 numbers by the number of their divisors and if you are a little bit into numbers will spot the pattern immediately or you try to construct the prime factorization of number which only allows to combine 3 divisors.