Composite numbers are positive integers greater than 1 that have more than two factors. Between 15 and 25, the composite numbers are 16, 18, 20, 21, 22, 24. These numbers can be divided evenly by factors other than 1 and themselves, making them composite.
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10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25
Composite numbers between 25 and 40 (excluding 25 and 40, which are also composite numbers), are: 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, and 39.
The composite numbers between 1 and 30 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25, 26, 27, and 28.
They are all prime numbers except for 15 21 25 and 27 which are composite numbers
4, 6, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 22, 24, 25