What number do you get when you multiply the distinct prime factors of 28?

28 is a composite number because it has factors other than 1 and itself. It is not a prime number. The 6 factors of 28 are 1, 2, 4, 7, 14, and 28. 1 + 2 + 4 + 7 + 14, The factor pairs of 28 are 1 x 28, 2 x 14, and 4 x 7. The proper factors of 28 are 1, 2, 4, 7, and 14 or, if the definition you are using excludes 1, they are 2, 4, 7, and 14. The prime factors of 28 is 2 and 7