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1). List all of the factors of 16.

2). List all of the factors of 20.

3). List all of the factors of 28.

4). Make a short list, comprised of any numbers that are on all three lists.

These are the common factors of 16, 20, and 28.

5). Find the greatest number on the short list. That's the greatest common factor

of 16, 20, and 28. If it is not 4, then an error has crept into your work, and you are

doomed to return to Step-1 and eternally repeat the process until you get 4 .

More answers

The GCF is 4.

Q: How do you find the greatest common factor of 16 20 and 28?

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The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.

The greatest common factor for 16 and 38 is 2.

The greatest common factor of 16 and 34 is 2.

The greatest common factor for 15 and 16 is 1.

The greatest common factor of 16 and 28 is 4

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The greatest common factor (GCF) is 4.

Two or more numbers are required to find the greatest common factor between them.

Greatest common factor of 16 and 16 is 16.

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The greatest factor of 21 and 16 is 21, which is a factor of 21 but not of 16.

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The greatest common factor for 16 and 38 is 2.

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