Question

Which expression represents the greatest common factor of 48 and 136?
A. 2 x 2
B. 2 x 2 x 2
C. 2 x 2 x 2 x 3
D. 2 x 2 x 2 x 3 x 17

Answer 1

Answer:

The answer is B

2 x 2 = 4

4 x 2 = 8

8 x 6 = 48

8 x 17 = 136

why isn't it C or D?

For C, 8 x 3 = 24 (throwing the 8 in there because the expression is the same as B).

24 x 2 = 48, but 24 x 5 = 120 and 24 x 6 = 144.

It's also the same reason why it's not D, except that the expression goes WAY into the 400's