There are more possible arrangements of a deck of cards than atoms on Earth — 52! ≈ 8 × 10^67

There are more possible chess games than atoms in the observable universe — about 10^120 vs 10^80

Chess games exceed the observable universe's atom count: 10^120 > 10^80

Pi has been calculated to over 100 trillion digits — but 39 digits is enough to measure the observable universe to the width of a hydrogen atom

Pi's 39-digit approximation measures universe's width to hydrogen atom's size

A prime number cannot be divided evenly by any number except 1 and itself — the largest known has 24 million digits

Prime numbers are indivisible by any number other than 1 and themselves, with the largest known having 24 million digits

The birthday paradox: in a group of 23 people, there's a 50% chance two share a birthday

In a group of 23, there's a 50% chance at least two share a birthday due to the birthday paradox

Nintendo was founded in 1889 — originally as a playing card company in Kyoto

Nintendo was founded in 1889 as a playing card company in Kyoto

The observable universe is about 93 billion light-years in diameter

The observable universe spans approximately 93 billion light-years across