Did you know that 3x4 = 10? (Maybe if we all had 6-fingered hands, we'd all count numbers this way!) Join us as we explore number systems outside the realm of the decimal system we all know and love, and brace yourself for a deep dive from there into the mystery of divisibility rules, both in decimal and in other stranger systems. We'll probably be dipping our toes into number theory and modular arithmetic along the way, but everyone with a firm grasp of arithmetic is welcome in this circle!