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9 and 15 are the only two odd composite numbers less than twenty.

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Q: What are the 2 odd composite numbers less than 20?
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Related questions

Which composite number is odd and smaller than 20?

15 and 9 are both odd, composite numbers less than 20.


What are all odd composite numbers that are less than 20?

9 and 15


What are all the odd composite numbers less than 30?

The odd composite numbers lower than 30 are:9 15 21 25 27


How many counting numbers less than 30 are composite but neither odd nor even?

None. All counting numbers are even or odd.


How do composite numbers compare with odd and even numbers?

composite numbers are those that have more than 2 factors. all even numbers other than 2 are composite numbers and some odd numbers are composite numbers. numbers that are prime are the numbers that are not composite numbers i hope this answers your question :)


What are all the numbers less than 100 that have odd proper factors?

There are 10 numbers less than 101 which have an odd number of factors: 1,4,9,16,25,36,49,64,81,100.


Which counting numbers less than 30 are both odd and composite?

9, 15, 21, 25, 27


What numbers that are less than a hundred have proper factors that are only odd numbers?

Numbers that are prime can't be multiples of 10. Multiples of 10 can't be odd.


Which counting numbers are both odd and composite?

Any product of two or more odd numbers that are larger than 1. For example, 33 = 3*11 is odd and composite.


List all the odd composite numbers?

there are infinity odd composite numbers


Do prime numbers have to be odd and composite numbers have to be even?

No. All prime numbers except for the number 2 are odd. However, most odd numbers are composite numbers. All even numbers greater than 2 are composite numbers. So, prime numbers do not need to be odd, since one prime number is even. Also, composite numbers do not need to be even.Here are some composite odd numbers:9 = 3 x 333 = 3 x 1175 = 5 x 15


What are the composite odd numbers with factors?

It is impossible to list the infinite number of composite odd numbers.