Introduction to Euler's Totient Function!

Euler's totient function φ(n) is an important function in number theory. Here we go over the basics of the definition of the totient function as well as the value for prime numbers and powers of prime numbers! Modular Arithmetic playlist: https://www.youtube.com/playlist?list=PLug5ZIRrShJHPX-OyMNLLCQfKXchdZKpE 0:00 Definition and example 1:56 Totient of a prime number 3:30 Totient of power of a prime Subscribe to see more new math videos! Music: OcularNebula - The Lopez