Questions about Arithmetic Problem

[skylarhanson8]

For this question, I got two correct answers, even though the correct answer should be A) 5. Can anyone tell me why my answer below would not also work?

B) 6
2^5 + 97^1

[htahir1]

Hello…

1 is not a prime number. Come on dude. We have bigger fish to fry here.

Thanks