2 is an even Prime number. 3, 7, 11, 13 are odd prime numbers.
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.
Any product of two or more odd numbers that are larger than 1. For example, 33 = 3*11 is odd and composite.
12, 14, 15, 16, and 18 are composite numbers 11, 13, 17, and 19 are prime numbers
9 and 10 are but 11 is prime
15 is a composite number - it can be divided by 3 and 5. 11, 13, 17 and 19 are all prime numbers, not composite.
1 is special 2 prime 3 prime 4 composite 5 prime 6 composite 7 prime 8 composite 9 composite 10 composite 11 prime 12 composite ext.
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.
No because 11 is a prime number but the rest of them are composite numbers.
11 is a prime and contains no composite numbers.
They are all odd, and they are all prime numbers
Composite. It is divisible by 11 and 13.
Any product of two or more odd numbers that are larger than 1. For example, 33 = 3*11 is odd and composite.
A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite. 39 is composite but 11 is prime.
11 composite 8 prime 1 neither
Just multiply two or more odd prime numbers, for example: 3 x 3 = 9 7 x 11 x 13 = 1001
12, 14, 15, 16, and 18 are composite numbers 11, 13, 17, and 19 are prime numbers