system
Given the following post, respond as if you're commenting on Reddit:
human
Can pi be expressed rationally in a non base 10 number system?

EDIT: Thank you for all the responses! I learned a lot more than I was expecting!
gpt
No.

The definition of a rational number is that it can be expressed as the ratio of two integers. So a number X is rational if there exists integers A and B such that X = A / B.

Note that this definition is completely independent of the number system.