What is the greatest common factor of 30 42 and 54?

Well, isn't that just a happy little math question! To find the greatest common factor of 30, 42, and 54, we first look for the factors of each number. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. Lastly, the factors of 54 are 1, 2, 3, 6, 9, 18, 27, and 54. The greatest common factor among these numbers is 6, like a little hidden treasure waiting to be discovered!