No, they need not be.
No.
No. They are both composite numbers. They are not relatively prime either.
Not necessarily. 4 and 9 are relatively prime and both are composite.
No it does not mean that.
both are composite numbers
Relatively prime numbers share no common factors other than 1.
There are several ways to achieve this. For example, any two prime numbers. Or just multiply different small prime factors for each of the numbers - picking different prime factors for each - for example, a power of 2, and a power of 3.
It is, and always is relatively prime.
Type your answer here... -1,0 and 1
120 and 49
No because they are both composite numbers
No because they are both composite numbers