None of them. All counting numbers are either odd or even.
None. All counting numbers are even or odd.
1 and it is 2
The only even prime number is 2. All the rest of the even numbers are composite.
They are 4, 6, 8, 9, 10, 12 and 14.
9, 15, 21, 25, 27
49 of them.
Literally every single even number less than 1000 is a composite number other than 2 which is prime.
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.)
The sum of the composite numbers that are less than 8 is: 4+6 = 10
composite numbers are less than 12: 4, 6, 8, 9, 10
It is a composite even number which is also a rational number.
9 and 15 are the only two odd composite numbers less than twenty.