28 is a composite number because it has factors of 2 and 7.
Chat with our AI personalities
composite and 2*2*7 = 28
The composite factors of 28 are 4, 14, 28 The composite factors of 24 are 4, 6, 8, 12, 24
28 is a composite number because it has more than two factors but 29 is a prime number because it has only two factors.
30
Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.