If he number has a multiple other than itself it is composite.
33 is the first composite number that is greater than 30 but is not a multiple of 2
4 is a composite number (2 x 2), and it is less than 5.
It is 10
49
4 is.
Literally every single even number less than 1000 is a composite number other than 2 which is prime.
It is 19 which is a prime number
Not all (5 is prime) but every multiple of 5 greater than 5 is composite because they have more than two factors. Every multiple of any integer greater than one is composite.
99 is the largest composite number less than 100: its prime factorisation is 3 x 3 x 11
99
4