What is the greatest common factor of 28 42 and 56?

Answer 1

When finding the GCF of a set of numbers, firstly express each number as a product of its prime factors.

28 = 2 x 2 x 7

42 = 2 x 3 x 7

56 = 2 x 2 x 2 x 7

The factors that each number has in common are 2 and 7.

The Greatest Common Factor is therefore 2 x 7 = 14

Answer 2

Well, well, well, look who's trying to get their math on! The greatest common factor of 28, 42, and 56 is 14. It's like finding the one thing these numbers all have in common - they're all divisible by 14. Keep crunching those numbers, smarty pants!

Answer 3

The greatest common factor (GCF) of 28, 42, and 56 is the largest number that divides evenly into all three numbers. To find the GCF, you can first list the factors of each number: 28 (1, 2, 4, 7, 14, 28), 42 (1, 2, 3, 6, 7, 14, 21, 42), and 56 (1, 2, 4, 7, 8, 14, 28, 56). The largest number that appears in all three lists is 14, so the GCF of 28, 42, and 56 is 14.

Answer 4

The greatest common factor of 28, 42, and 56 is 14

The common factors are 1, 2, 7, and 14. Therefore, the greatest common factor is 14.

Answer 5

The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.

Answer 6

The GCF is 14.

Answer 7

GCF(28, 42, 56) = 14.

Answer 8

29

Answer 9

27

Answer 10

14