There are 7 composite numbers from 10 to 20 (including the boundaries): 10, 12, 14, 15, 16, 18 and 20

number of composite numbers below 20: 10 composite numbers below 20: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18

10 composite numbers are less than 20.

The composite numbers between 10 and 20 are 12, 14, 15, 16 and 18.

no 5 is not a composite number 10 15 20 and 25 are composite

10, 12, 14, 15, 16, 18, 20

The composite numbers from 2 to 20 are 4, 6, 8, 9, 10, 12, 14, 15, 16, 18, and 20.

there are 4. 11,13,17,19

10, 12, 14, 15, 16, 18, 20.

10,12,14,15,16,18, and 20 dumbshit

The composite numbers in that range are 10, 12, 14, 15, 16, 18, 20. I don't know if you're including 10 and 20 or not. Add them up however you like.

The composite numbers up to 20 are 4,6,8,9,12,14,15,16,18 and 20.

Composite numbers between 6 and 20 are 8, 9, 10, 12, 14, 15, 16, and 18.

They are: 10 12 14 15 16 18 and 20

There are 3 composite numbers between 20 and 25. They are 21, 22, and 24.

The numbers 4, 6, 8, 9, 10, 12, 14, 15, 16, 18 and 20 are composite (including the boundaries).

20 is composite: it is divisible by 1, 2, 4, 5, 10, and 20. All even numbers, except the number two, are composite.

The only composite factor of 10 is 10. The composite factors of 20 are 4, 10, 20

The composite numbers less than 20 are: 4, 6, 8, 9, 10, 12, 14, 15, 16, 18

10 and 20 are composite numbers, not prime numbers. The prime factorization of 10 is 2 x 5. The prime factorization of 20 is 2 x 2 x 5.

4, 10, 20, 25, 50, 100 are the composite factors of 100.