If x = (y)(y + 1) and y is a prime number…

If x = (y)(y + 1) and y is a prime number less than 6, which of the following could not be the product of 2 consecutive integers?

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 #83615