What is the highest common factor of 27 42 and 48?

Well, isn't that a happy little math question! To find the highest common factor of 27, 42, and 48, we first need to find the factors of each number. The factors of 27 are 1, 3, 9, and 27. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, and 48. The highest common factor of these numbers is 3.