Defines a function named factorial that takes a number as an argument and calculates its factorial using a loop or recursion. Returns the calculated factorial. Calls the function with a sample number ...
A function named euler_phi(n) that computes Euler's totient function φ(n): the number of integers from 1 up to n that are coprime with n (i.e., integers k with gcd(k, n) == 1). Notes and Working of ...
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