Answer:
1 is neither prime nor a composite number because it only has 1 divisor, 1 and 1, and it doesn't have more than 2 integral divisors, like stated, it only has 1. So it falls in neither category.
Answer:
Answer for A
Step-by-step explanation:
I don't know about B , Sorry for that.
Answer:
Step-by-step explanation:
=
or 81.