Why is 9² Special Among Squares?

(1/9²) = (1/81) = [0.012345679012345679…] — And the rabbit hole goes deeper!

Hemanth
Street Science
Published in
5 min readJan 21, 2022

--

Why is 9² special? — Image with the question “1/9² = ??”
Image created by the author

What makes 9² special besides the fact that it is a square number? Well, when you divide 1 by 9², you get the following decimal series:

--

--