# What is the greatest common factor of 6 and 54?

The answer is 6.

First, let's find the GCF of both numbers. We know that since both are even, their GCFs are 2. We then divide both numbers by 2. 6 divided by 2 equals 3. 54 divided by 2 equals 27. Afterwards, let's take a closer look at the problem. Since both are divisible by 3, we get 1 and 9 respectively. Next, let's find the GCF of both of those numbers. Since 1 has already been fully divided off, we now need to multiply our other 2 GCFs. 2 times 3 is equal to 6, and our GCF is 6.

Let's see if our calculation is correct: 6 divided by 6 equals 1. 54 divided by 6 equals 9.

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The greatest common factor of 6 and 54 is 6.

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