0
Anonymous
1 2 3 5 7 11 13 15
Wiki User
Chat with our AI personalities
17,19,23,29
13
17... and 19 !
It is 7.
The numbers between 10 and 20 that are not prime are 12, 14, 15, 16 and 18. So 15 is the odd number and the rest are even numbers.