Honestly math is filled with cool stuff like this. In fact sometimes I wish I would have done a math minor or major at University instead of just a Computer Sci

Honestly math is filled with cool stuff like this. In fact sometimes I wish I would have done a math minor or major at University instead of just a Computer Science major and Information Systems minor (I’m finishing my undergrad in the spring.) Combinatorics is one of my favorite fields I always feel it has a lot of cool gems like that one and the proofs are often really intuitive. Combinatorics is all about counting things like the number of possible poker hands given a single deck or the number of ways you can seat 4 people around a table. It was already mentioned below but, discrete math is another good one. Discrete math includes combinatorics, graph theory, set theory, logic, and number theory. All of these have really cool little tidbits of information. My Discrete Math course was my favorite class at university so far. One of the first random bits of information I learned in that class was that any number is divisible by 9 if the sum of it’s digits are divisible by 9 this was posed to us in one of our first homeworks to be proven or disproven and we were able to prove it using some algebra.