Comment by WilliamLP

One thing that raises my eyebrows is how much functional programmers talk about Project Euler problems. The actual programming for solving these problems is in fact extremely trivial. They require some mathematical insight, especially after the first one hundred or so, and you need to do some external research on Pell's Equation to avoid getting stuck, and you need a fraction library if your language doesn't have it built in. But am I wrong in thinking that these kind of problems are almost no test or strain for your actual programming at all?