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

Q: Which counting numbers are both odd and composite?

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9, 15, 21, 25, 27

None. All counting numbers are even or odd.

All numbers are either odd or even, none are both, so less than 30 there are 29 counting numbers that are either odd or even but not both. (Assuming you mean starting to count with 1.)

Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite 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 :)

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9, 15, 21, 25, 27

None of them. All counting numbers are either odd or even.

None. All counting numbers are even or odd.

irrational numbers odd numbers even numbers whole numbers prime numbers composite numbers counting numbers

All numbers are either odd or even, none are both, so less than 30 there are 29 counting numbers that are either odd or even but not both. (Assuming you mean starting to count with 1.)

there are infinity odd composite numbers

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

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

Some. Any product of a set of odd numbers will be odd. To be even, a composite number must have at least one even factor. Therefore odd composite numbers must exist.

The sum of the first 500 odd counting numbers is 250,000.

Look for a table of prime numbers. All the odd numbers that are NOT on this list are composite 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 :)