A composite number is a positive integer that has at least one positive divisor other than one and itself, meaning it can be divided by numbers other than 1 and itself.
Among the numbers you provided:
- 27: This number can be divided by 1, 3, 9, and 27 (3 x 9 = 27), so it is composite.
- 67: This number is a prime number because it can only be divided by 1 and 67.
- 37: This number is also a prime number because it can only be divided by 1 and 37.
- 47: This number is another prime number because it can only be divided by 1 and 47.
Thus, the only composite number in your list is 27.