Euler's phi function: let d (1) = 1, 1 point and for any integer n >1, let p (n) denote the number of positive integers less than n and relatively prime to n. t

Euler's phi function: Let d (1) = 1, 1 point and for any integer n >1, let p (n) denote the number of positive integers less than n and relatively prime to n. The value of d(6) is O 4 O 2 O 3 O 5 If d is a positive divisor of n, the 1 point number of elements of order d in a cyclic group of order n is d(d).