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Answered 2015-07-31 03:37:37

If an odd number has more than two factors then it is a composite number but if it has only two factors then it is a prime number. Although all prime numbers are odd except for 2 many more odd numbers are composite numbers having more than two factors as for example 21 is an odd number whose factors are 1, 3, 7 and 21.

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Related Questions

List all the odd composite numbers?

there are infinity odd composite numbers


What are the composite odd numbers with factors?

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


What are composite odd numbers?

They are odd numbers that do not include prime numbers.


Why are some odd numbers composite?

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.


What are all the odd composite numbers 1-100?

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


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 :)


Are all composite numbers even numbers?

no55 for example is odd and composite


Is all composite even?

No. Some composite numbers can be odd.



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


Are all composite numbers even?

No, they aren't. Numbers like 49 and 27 are odd and composite.


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.



Are all odd numbers composite?

With the exception of 2, all primes are odd numbers, therefore the answer is no.


Are odd numbers composite numbers?

Some are. However prime numbers are always odd, with the exception of the number 2.


What are the 2 odd composite numbers less than 20?

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


Are all composite numbers also even numbers?

No, some composite numbers are odd. The smallest composite odd numbers are 9, 15, 21, 25, and 27. Not all even numbers are composite either. There's only one even number that's prime, which is 2.


Can a composite number be divided by two?

Even composite numbers can, odd composite numbers can't.


What are all the odd composite numbers less than 30?

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




Which numbers are odd and composite?

That's an infinite list.




Why all prime numbers are odd?

The aren't. Two is even and is a prime number. There are many odd, composite numbers.


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