The new year is in full swing with February approaching fast and bringing with it the much anticipated release of Ruby 2.0. So it seems like the perfect time to explore a couple of its new features. Two that I found interesting were the Enumerator::Lazy and Refinements so today we'll look at implementing a solution to a Project Euler challenge. This implementation will allow us to utilize these two features without a contrived example. After all, the Ruby 2.0 features are the focus.