answersLogoWhite

0

13x9= 117

13 is prime so you don't continue with 13 because nothing goes into it equally.

Then you continue with 9, and obviously 3 goes into 9 three times. (3x3=9)

Now, since nothing goes evenly into three, we stop our factor tree.

(:

User Avatar

Wiki User

13y ago

What else can I help you with?