21 is an odd composite number
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
An odd number is an integer that is not evenly divisible by 2. A composite number is a positive number that has divisors other than 1 and itself. So any odd number greater than 1 that is not prime would be a composite odd number. For example, 9, 15, 21, and 25 are odd composite number because the are odd and they have divisors. 1, 3, 5, and 7 are not composite because they are only divisible by 1 and themselves.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. Composites can be either.
81 is an odd composite number.
The smallest number that is both odd and composite is 9, which is divisible by 3. The odd numbers are 1, 3, 5, 7, 9, 11, ..., and 1, 3, 5, and 7 are all prime. It is 9 that is the smallest odd composite number.
15 and 9 are both odd, composite numbers less than 20.
21 is an odd composite number
35 is an odd composite number
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
An odd number is an integer that is not evenly divisible by 2. A composite number is a positive number that has divisors other than 1 and itself. So any odd number greater than 1 that is not prime would be a composite odd number. For example, 9, 15, 21, and 25 are odd composite number because the are odd and they have divisors. 1, 3, 5, and 7 are not composite because they are only divisible by 1 and themselves.
An even number can be divided by 2 evenly. An odd number will have a remainder of 1 when divided by 2. Composites can be either.
Yes
It is a composite odd number
It is impossible to list the infinite number of composite odd numbers.
81 is an odd composite number.
19 is the tenth odd number, And is not a composite number or even number.