Find the GCF for 234 and 162?

Answer 1

First you must find all of the factors of both numbers:

234 = 2 * 117 = 2 * 3 *39 = 2 * 3 * 3 * 13
162 = 2 * 81 = 2 * 3 * 27 = 2 * 3 * 3 * 9 = 2 * 3 * 3 * 3 * 3

Now the common factors between these numbers are: 2 * 3 * 3.

So, the GCF = 2*3*3 = 18

Answer 2

234 = 117 x 2 = 39 x 3 x 2 = 13 x 3 x 3 x 2

162 = 81 x 2 = 27 x 3 x 2 = 3 x 3 x 3 x 3 x 2

Now you can work out the rest.