Davis, Tom. (2020). Big Numbers. In S. Kohli (Ed.), Math Circle Activity Database. American Institute of Mathematics.

Big Numbers

Math Circles:
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!

Activity Guide

This guide looks at big numbers in detail.