It is a composite.
The number 23 is a prime number. It has only 1 and 23 as its factors.
529 is not prime. 529 = 23 * 23
15 is composite number 17, 19 and 23 are prime numbers.
Prime numbers have two factors, composite numbers have more than two.
23 is prime, 66 is composite.
It is a composite.
The number 23 is a prime number. It has only 1 and 23 as its factors.
23 is a prime number.
21 is composite. 19 and 23 are prime.
It is a prime.
Composite. Its prime factors are 23 and 31.
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. 23 is prime.
It's composite
23 is prime.
It is a prime number
9 is composite.