Yes it's 3 x 3.
Forty nine is composite.
Nine is a composite number.
39 is composite.
Thirty-nine is NOT a prime number. It is composite.
Yes.
nine
Your options C and D are the same, but it is true that 51 is a composite number.
Yes, by definition a composite number is a number that is divisible by another whole number besides one and itself. The only other whole number that nine is divisible by is three. Hope it helped!
Yes. 1, 3 and 9 are the factors of the composite number 9.
99 (Ninety nine) is composite, because it can be multiplied by 11, and 1.
9 is a composite number but 3 is a prime number
It is composite.