What is the greatest common factor of 32 and 48?

The greatest common factor of 32 and 48 is 16.

To find the greatest common factor, first list the factors of each number:

32: 1, 2, 4, 8, 16, 32 48: 1, 2, 3, 4, 6, 8, 12, 16, 24, 48

The factors that are common to both lists are: 1, 2, 4, 8, and 16. The greatest of these is 16, so that is the greatest common factor.