The odd composite numbers lower than 30 are:
9 15 21 25 27
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40,38,36,35,32,28,27,25,24,21,20,18,16,15,14,12,10,9,8,6,4
Literally every single even number less than 1000 is a composite number other than 2 which is prime.
They are all composite.
All composite numbers have more than two factors.
88 is a composite number because it is an even number. All numbers greater than 8 and less than 100 are composites if they are even numbers, if they are multiples of 3 or 7, or if they end in 5 or 0.