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Q: How many whole numbers greater than 20 and less than 30 are composite?

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There are 7 composite numbers greater than 20 and less than 30:21, 22, 24, 25, 26, 27, 28

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

There are 15 composite numbers greater than 50 but less than 70

The composite numbers greater than 88 and less than 95 are: 90, 91, 92, 93, 94.(88 and 95 are themselves also composite.)

Composite numbers less than 70 and greater than 60 are 62, 63, 64, 65, 66, 68 and 69.

Three of them.

Composite numbers greater than 20 and less than 30 are 21, 22, 24, 25, 26, 27, 28.

There are 18.

Five.

24

The only even prime number is 2. All the rest of the even numbers are composite.

This question is impossible to answer because there are six composite numbers in that range, not five!

The even whole numbers greater than 21 and less than 28 are: 22, 24 and 26

18 and 20

there are 4. 11,13,17,19

All of them except 31 and 37 which are prime numbers

109 whole numbers greater than 9 and less than 999 are multiples of 9

49, 50, 51, 52, 54 and 55 are the composite numbers between 48 and 56.

19,23

6

They are: 8

57 to 89

45 of them.

I suggest you look up a table of prime numbers. Any integer treater than one that is not in the table of prime numbers is a composite number.

For this type of question, you should search the Internet for a list of prime numbers. All the integers that are not prime numbers are composite. In this case, the relevant prime numbers are 101 and 103.