The composite numbers from 1 to 23 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, and 22.
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The factors of 246 are 1, 2, 3, 6, 41, 82, 123, and 246. The composite factors of 246 are 6, 82, 123, and 246.
Not all composite numbers are even, but all even numbers except 2 are composite.
They are all composite.
there are infinity odd composite numbers
The numbers in the 90s are all composite, apart from 97, which is prime.