Asked by Whitney
How do I find the greatest common factor of 54, 81, and 135? I don't understand the tree diagram either. :(
Answers
Answered by
Ms. Sue
I usually start with the factors of the largest number. The obvious factor of 135 is 5. Bingo! 5 * 27 = 135
27 is also a factor of 81 and 54.
This site explains the factor tree.
http://www.mathsisfun.com/definitions/factor-tree.html
27 is also a factor of 81 and 54.
This site explains the factor tree.
http://www.mathsisfun.com/definitions/factor-tree.html
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