How many common factors of 28 and 32 have July 8, 2019 16 32 64 128 How many common factors do 28 and 32 have How many common factors does 28 and 32 have How many common factors do the numbers 28 and 32 have How many common factors does the number 28 and 32 have 1 2 3 4 5 moddalar