dmccorey dmccorey

03-11-2017
Mathematics

contestada

what is the greatest common factor of 27 and 36

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nata1234 nata1234

03-11-2017

9 because the gcf of 36 is 1,2,3,4,6,9,12,18,36
and then the gcf of 27 is 1,3,9,27
the gcf for both is 9

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erainabrown erainabrown

03-11-2017

Find the prime factors of each number
27= 3 x 3 x 3
36= 2 x 2 x 3 x 3
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Now identify the common factors and determine GCF
27= [3 x 3] x 3
36= 2 x 2 x [3 x 3]
--------------------
Therefore
GCF= 3 x 3 = 9

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