If 72/x is an integer and 108/x is an integer, which of…

If 72/x is an integer and 108/x is an integer, which of the following must be true? I. 9/x is an integer. II. 12/x is an integer. III. 36/x is an integer.

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #6326