1 and it is 2
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Literally every single even number less than 1000 is a composite number other than 2 which is prime.
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.
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3 composite numbers, 21, 22, and 24, are greater than 20 but less than 25.
The composite numbers that are between 1 and 20 inclusive are: 4 6 8 9 10 12 14 15 16 18 20 This is a total of eleven composite numbers equal to 20 and below.