Skip to content# Big Numbers

**Classifications**

Author(s): Tom Davis

Using the standard arithmetic operations (addition, subtraction, multiplication, division and exponentiation), what is the largest number you can make using three copies of the digit “9”? While this would be a pretty large number, with a little cleverness you can do far better. This session explores VERY large numbers!

Topics covered: Number Theory

Session styles: Problem Posing, Try a Smaller Problem

Supporting materials: Facilitator Guides

Associated Math Circles: MTC Network