What are the odds of a perfect bracket?

What are the odds of a perfect bracket? How crazy small is the chance? Here’s the TL/DR version of the odds of a perfect NCAA bracket: 1 in 9,223,372,036,854,775,808 (if you just guess or flip a coin) 1 in 120.2 billion (if you know a little something about basketball)

How crazy small is the chance? Here’s the TL/DR version of the odds of a perfect NCAA bracket: 1 in 9,223,372,036,854,775,808 (if you just guess or flip a coin) 1 in 120.2 billion (if you know a little something about basketball)