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4, 6, 8, 9, 10, 12, 14, 15, 16, 18

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Q: How many composite numbers are there under 20?
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Related questions

What are the odd composite numbers under 20?

4,6,8,9,10,12,14,15,16,18 :)


HOW MANY COMPOSITE NUMBERS ARE BETWEEN 20-25?

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


What are the composite numbers up to 20?

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


How many composite numbers that are less than 20?

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.


How many composite numbers are there from 10 to 20?

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


How many composite numbers are less than 20?

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.


How many composite numbers are there between 1 and 20?

There are eleven of them including 20


How many composite numbers are there below 20?

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


How many composite numbers are greater then 20 but less then 25?

To find the composite numbers greater than 20 but less than 25, we first list the numbers between 20 and 25: 21, 22, 23, 24. Next, we identify which of these are composite. A composite number has more than two factors. **21**: Factors are 1, 3, 7, 21 (composite). **22**: Factors are 1, 2, 11, 22 (composite). **23**: Factors are 1, 23 (prime). **24**: Factors are 1, 2, 3, 4, 6, 8, 12, 24 (composite). So, the composite numbers are 21, 22, and 24. Thus, there are **3** composite numbers greater than 20 but less than 25.


Are 20-28 composite numbers?

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


How many composite numbers are there between 10 and 20 including 10 and 20?

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


How many composite numbers between 20 and 30?

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