3,7,11,13
'5' & '15' are odd numbers less than 20 , and are also multiples of '5'.
Well, darling, the number you're looking for is 15. It's less than 20, odd, and can be broken down into the prime factors 3 and 5. So, there you have it, a prime factor party with the number 15 strutting its stuff.
Four of them.
All those not less than 20.
First odd number greater than 20 is 21 Last odd number less than 200 is 199 → number of odd numbers between 20 and 200 is (199 - 21) ÷ 2 + 1 = 90
1 and 5 are the factors of 20 which are odd.
The odd primes less than 20 are: 3 5 7 11 13 17 19
9 and 15 are the only two odd composite numbers less than twenty.
Assuming you refer to positive integers, the answer is 10:9
15 and 9 are both odd, composite numbers less than 20.
Seven of them.
Numbers that are prime can't be multiples of 10. Multiples of 10 can't be odd.