Factor 54+2754+27 using the GCF. Whats the answer

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When you look at the expression, 54 + 27, what do the two addends have in common? The first thing I notice is that 54 = 2 (27), which means that 27 is a factor of both. Since, 27 is actually one of the addends, it's the greatest factor of 27 and therefore the greatest common factor. So, 54 + 27 = 27 (2+1) 54 + 27 = 27 (3)