What is the GCF of 16 and 24 and 32?

Answer 1

The greatest common factor is 8.

(16 = 2 x 8, 24 = 3 x 8, 32 = 4 x 8)

To find a GCF for more than 2 numbers, multiply their common prime factors:

16 = 2 x 2 x 2 x 2

24 = 2 x 2 x 2 x 3

32 = 2 x 2 x 2 x 2 x 2

Common factors are 2 x 2 x 2 = 8