Yes.
54 is a composite number, not prime, because 2, 3, and 6 also go into it.
composite.
It is composite.
No, it is composite.
51 is composite.
50 is even 25x2= 50 * * * * * True, but the question is about 54. 54 is also composite: 54 = 2*27
Composite. two and four can go into 318.
21 is not a prime number.
Yes.
four
Composite. All whole numbers ending in four are composite.
You get a composite number.