Find the greatest common factor of 36 and 42

The greatest common factor is 6

36: 1, 2, 3, 4, 6, 9, 12, 18, 36
42: 1, 2, 3, 6, 7, 14, 21, 42

Hope this helps : )

Hello!

To get the Greatest Common Factor (GCF) of 36 and 42 we need to factor each value first and then we choose all the copies of factors and multiply them: 

 36:   2233
 42:   2 3 7

GCF: 2 3

Therefore, The Greatest Common Factor (GCF) is:   2 x 3 = 6

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