If n = 2×3×5×7×11×13×15, then which of the following statements must be…

If n = 2×3×5×7×11×13×15, then which of the following statements must be true? I. n^2 is divisible by 600 II. n + 19 is divisible by 19 III. (n + 4)/2 is even

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 #15567