Question

What is the greatest common factor of 51 and 85?

Answer 1

Answer:

The greatest common factor is 17.

Step-by-step explanation:

Both 51 and 85 have only two common factors, 1 and 17. Since, 17 is greater than 1, 17 is the greatest common factor.

Answer 2

Answer:

17

Step-by-step explanation:

The greatest, and only common factor of 51 and 85 (besides for 1) is 17.

51 / 17 = 3

85 / 17 = 5

So, since 17 can evenly divide both these numbers, it is a common factor.