Скачать с ютуб Proof that the Totient Function is Multiplicative в хорошем качестве

Proof that the Totient Function is Multiplicative

Coprime numbers mod n:    • Coprime Numbers and Reducing mod n   Chinese remainder theorem:    • Chinese Remainder Theorem   Surjection and bijection:    • Surjections and Bijections, and why t...   Explanation of why Euler's totient function of a product of coprime numbers is equal to the product of the totients of those relatively prime numbers. Understanding the relationship between those two totients is awesome! Modular Arithmetic playlist:    • Modular Arithmetic   Subscribe to see more new math videos! Music: OcularNebula - The Lopez