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Q: How many composite numbers are there between 20 and 40?

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

There are eleven of them including 20

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

Not all numbers between 20 and 28 are composite numbers. 23 is a prime number.

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

The composite numbers between 20 and 25 are 21, 22, and 24. 23 is the only prime number between 20 and 25.

The composite numbers between 20 and 30 are 21, 22, 24, 25, 26, 27, and 28.

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.

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

20,21,22,24,25,26,27,28,30

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

23 and 29

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

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

11 composite 8 prime 1 neither

They are the numbers that have more than two factors in them.

20, 21, 22, 24, 25

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

12,14,15,16, and 18

All of them except for 23 and 29 which are prime numbers.

All of them except 23 and 29 which are prime numbers

12 14 15 16 18 20

20, 21, 22, 24, 25

4 6 8 9 10 12 14 15 16 18 20.

3 composite numbers, 21, 22, and 24, are greater than 20 but less than 25.