Respuesta :
No, 1 is not a prime number, but 2 is. So, no not all prime numbers are odd.
Nope, Not all prime numbers are odd. For instance, 2 is a prime number, though it isn't odd. 1 is an odd number, but it isn't neither. Not a composite number or prime number.
:) I hope I helped!
:) I hope I helped!