Euler's Totient Function

Dependencies: None

Euler's totient function $\phi(n)$ is the number of numbers smaller than $n$ and coprime to $n$.

Dependency for:

  1. Sum of ϕ of divisors
  2. ϕ is multiplicative
  3. Euler's Theorem Used in definition
  4. A cyclic group of order n has ϕ(n) generators

Info:

Transitive dependencies: None