It is: 97
No.
91
91
97 is the only prime number in the nineties.
97 is the only prime number.
97
No, 97 is a prime number.
No, 97 is prime.
There is one prime number and it is 97.
91, and 97 are the only ones.
is every number in the nineties is a composite answer
they are both prime and composite numbers