Euler Totient Function Extended

Euler totient function (denoted by phi(N)) for a positive integer N is defined as number of positive integers less than or equal N that are coprime to N Let's generalize this concept of Euler totient function. For positive integer N let's write out the integers that are less than or equal to N and are coprime to N. We'll get a list of integers of the form A1, A2, ..., AM, where M = phi(N). Let's