turkey-yks 2011 Q16

turkey-yks · Other · ygs Number Theory GCD, LCM, and Coprimality
Let n be a positive integer, and let $S(n)$ denote the set of positive integers that divide n without remainder.
Accordingly, how many elements does the intersection set $S(60) \cap S(72)$ have?
A) 8 B) 9 C) 6 D) 5 E) 4
Let n be a positive integer, and let $S(n)$ denote the set of positive integers that divide n without remainder.

Accordingly, how many elements does the intersection set $S(60) \cap S(72)$ have?

A) 8
B) 9
C) 6
D) 5
E) 4