Since 27 is a factor of 189, it is automatically the GCF.
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The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 135 and 189 is 27
The GCF is 27.
the greatest common factor for 27 and 32 is 1
The greatest common factor of 27 and 35 is 1
Oh, dude, the greatest common factor of 54, 135, and 189 is 27. It's like the cool kid at the math party that all three numbers can agree on. So, yeah, 27 is the answer, but don't stress about it too much.