Trick: NOT Greatest Common Factor for Integers #GMAT #GRE #SAT #MiM #mba

In this case, the simplest thing is to realize that the denominator x + y will be larger than either x or y. Therefore it will be a fraction, not an integer.
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Which of the following cannot be the greatest common divisor of two postive integers x and y?

a:1
b:x
c:y
d:x-y
e:x+y

Видео Trick: NOT Greatest Common Factor for Integers #GMAT #GRE #SAT #MiM #mba канала Your GMAT Coach