5 is prime
Its only prime factor is 5 and as a product of its prime factors: 5*5 = 25
Prime.
47 is a prime number.
29 is a prime number.
89 is a prime number.
67 is a prime number.
37 is the 12th prime number.
because it is 1
91 is composite.
25 is a Composite Number.
It is a prime number because it has only 2 factors which are itself and one