OK we know that numbers are infinite, from this we can deduce that there is an infinite number of primes. So the question is.... Is the largest gap between prime numbers infinite or finite?
If there is always another prime up ahead, I'd vote that it must be finite. Unsure if infinity counts as a number let alone a prime. It's a concept. And comes in different flavours.
It's possible to construct arbitrarily large gaps between consecutive primes. It's difficult to know what the correct vocabulary is to describe this situation, because discussions about infinity often end up getting confusing, but "arbitrarily large" is I think the best way of putting it.