Integers 3n+2 and 8n+1 are divisible by an integer p

Integers 3n+2 and 8n+1 are divisible by an integer p. If p is not equal to 1, then p equals to?

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 #4604