A composite number is a positive integer that has at least one positive divisor other than one and itself. In other words, a composite number has more than two distinct positive divisors.
Let's analyze the numbers you provided:
- 37: This number is prime as it has only two divisors (1 and 37).
- 27: This number is composite because it can be factored into \(3 \times 9\) (or \(3 \times 3 \times 3\)), so it has divisors other than 1 and 27.
- 47: This number is prime as it has only two divisors (1 and 47).
- 67: This number is prime as it has only two divisors (1 and 67).
Thus, among the numbers listed, 27 is classified as a composite number.