# Anny

## Googol and googolplex

A googol is a 1 with a hundred zeroes after it, denoted 10100, while a googolplex is 1 with a googol zeroes after it, denoted 10googol. The terms were coined by 9-year-old Milton Sirotta, nephew of American mathematician Edward Kasner, and were popularized in the book “Mathematics and the Imagination” (1940) by Kasner and James … Read more

## Cardinality

Cardinality is a technical term used in mathematics, specifically in set theory, to describe the size of a set. More specifically, cardinality is a measure of how many distinct elements are in a set. In other words, cardinality tells you how many different things are in a set. For example, consider the set of all … Read more

## Millennium

The term “Millennium” refers to a period of time lasting 1000 years. This term is often used in reference to the end of the world or to a future golden age. How long is a millennium years? A millennium is a unit of time equal to 1,000 years. Is 2000 the new millennium? Yes, 2000 … Read more