They are: 4 6 8 9 10 12 14 15 16 18 and 20 itself and they are all composite numbers because they have more than two factors
Chat with our AI personalities
The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.
The composite numbers between 1000 and 1005 are numbers that have factors other than 1 and themselves. In this range, the numbers 1001, 1002, 1003, and 1004 are composite numbers. 1000 is not a composite number because it is divisible by 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, and 1000.
21 and 22.
The set of even numbers contains the prime number, 2. The set of composite numbers contains infinitely many odd numbers.
All even numbers are composite, because 2 is a factor of every even number.