Factorization diagrams are depictions of numbers using dots but grouped by factors. Ph.D. student Brent Yorgey invented them. Then Stephen Von Worley prepared this cool tool, which is a promenade of primes, composites, and their constituents, arranged with an aesthetically-tuned variation of Yorgey’s rules, one per second.
Pi Day is a website created to encourage an interest in STEM topics. Pi Day is a celebration of everything fun and interesting about math.