What is the gcf of 32 and 40?

The greatest common factor (GCF) of 32 and 40 is 8.

To find the GCF of two numbers, you can list the factors of each number and identify the largest factor that is common to both numbers.

Factors of 32: 1, 2, 4, 8, 16, 32 Factors of 40: 1, 2, 4, 5, 8, 10, 20, 40

The largest factor that is common to both 32 and 40 is 8, so the GCF of 32 and 40 is 8.