X is a variable which can represent any number, both prime and composite. Prime numbers are those whose only factors are themselves and 1. Composite numbers have other factors besides these.
Composite. It is 2 x 2 x 2 x 5.
not prime composite 7 x 17 = 119
3 x 3 x 59 = 531, making it composite.
3 x 3 x 41 = 369, making it composite.
1,269 is composite. Its prime factorization is: 3 x 3 x 3 x 47 = 1,269.
2 x 2 x 3 x 7 makes it composite.
3 x 3 = 9 (Not a prime ; Composite) 1 x 19 = 19 ( Prime) 3 x 7 = 21 (Note a prime: Composite) 5 x 5 = 25 (Not a prime ; Composite).
3455 is composite: its prime factorisation is 5 x 691.
2 x 2 x 3 x 3 x 3 = 108, making it composite.
423 is a composite number. Its prime factorisation is 3 x 3 x 47.
It is composite.
2 x 2 x 2 x 2 x 2 x 5 = 160, making it composite.