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9 and 15 only.

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13y ago

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Related Questions

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

9 and 15


What are the odd composite numbers under 20?

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


What are the 2 odd composite numbers less than 20?

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


Which composite number is odd and smaller than 20?

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


A number between 11 and 20 that is both composite and odd?

15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.


What is the odd composite numbers less then 20?

Oh, dude, you want the odd composite numbers less than 20? Alright, let me break it down for you. So, we've got 9, 15, and 21. Wait, no, scratch that last one, it's above 20. But yeah, those are the odd composite numbers you're looking for. Like, you're welcome.


Are 20-28 composite numbers?

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


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.


Is 256 a prime or composite number?

Since 256 is an EVEN number, then it is a Composite number. It is definitely NOT a prime number. NB Remember ALL even numbers are composites, because they can all be divided by '2'. . This makes '2' a factor of all EVEN numbers. Remember ALL even numbers end in 0,2,4,6,8. So any number that ends in one of these numbers is a composite , and NOT a prime number. Except for '2' itself, all PRIME Numbers are ODD numbers. However, not all odd numbers are prime numbers., Numbers ending in '5' are odd numbers, but they are NOT prime number because they will all divide by '5' . All odd numbers end in 1,3,5,7,9. However, all prime numbers will only end in either 1,3,7, or 9. Here are the prime number up to '20'. 2,3,5,7,11,13,17,19


What are all the composite numbers from 20 to 30?

458267


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.


What are all the composite numbers between 10 and 20?

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