But then it must have heard (or read) somewhere that that particular number is not prime, and it is just repeating that (wrong) statement without checking it.

But then it must have heard (or read) somewhere that that particular number is not prime, and it is just repeating that (wrong) statement without checking it. So the real question is whether, after having verified that the statement is false and having apologized about the error, can it autocorrect its "knowledge" and not repeat the mistake?