The team listens in to communications coming from outer space and notices a pattern: each signal represents a prime number. They determine that the signal is coming from the star, Vega. After recording the sequence, the team displays on the computer screen that every prime number between 2 and 101 has been sent to them.

What is the "best" number? There's only one according to Sheldon! In this clip, Sheldon explains what the best number is and why it is the best number.

Nick explains what a prime number is and determines that the serial killer commits a murder on dates in the month that are prime numbers.

Square One TV shows kids how to properly round numbers. Mathematics R US offers a rounding service for their customers. They offer a special price in exchange for rounding numbers to the nearest tenth.

A group of wealthy individuals celebrate the new year at a ball. They count down the seconds until the clock strikes midnight. In addition to showing how some numbers are pronounced, this clip shows how the term, "Happy New Year," is pronounced in French.