What is the highest common factor of 28 32?

Answer 1

To find the highest common factor of two numbers, you must first split them into their prime factors. In this case, the numbers 28 and 32 can split as follows:

28 = 2x2x7

32 = 2x2x2x2x2

The next step is to identify all common prime factors. In this case, the common prime factors are two 2s. To find the HCF, you just multiply these together:

2x2=4

Thus the highest common factor of 28 and 32 is 4.

Answer 2

The GCF is 4a

Answer 3

The GCF of 20, 28, and 32 is 4.

Answer 4

The GCF is 4.

Answer 5

The GCF is 4a.

Answer 6

The GCF is 4.