No. 9 can be factored into 3 and 3, and 33 can be factored into 3 and 11.
9 is not a prime. 73 is a prime.
4 and 9
7,2
Of that group, 19 and 37 are prime.
7 and 41 are both prime numbers
Of course not! For example 3 and 9 are odd, but are not co-prime!
Out of the above set of numbers, the numbers 11,47,91 are Prime.
33 and 55 are divisible by 11. 63 is 7 x 9, so 19 and 67 are the prime numbers.
No because 9 is a composite number having more than 2 factors
29 is prime, all the others in the list are composite.
The set of prime numbers or any subset of it.
2, 3, 5 are prime numbers but 9 is not a prime number