What is the Greatest Common Factor of 2 and 20?

Greatest Common Factor of 2 and 20

Here we will first tell you what the Greatest Common Factor of 2 and 20 is and then show you how we found the Greatest Common Factor of 2 and 20.

The Greatest Common Factor of 2 and 20 is:

2

Step-by-step instructions for how to find the Greatest Common Factor of 2 and 20:

Step 1) We made a list of all the factors of 2 which are 1, 2.

Step 2) Then, we made a list of all the factors of 20 which are 1, 2, 4, 5, 10, 20.

Step 3) Finally, we compared the lists in Step 1 and Step 2 to find that the largest number they have in common is 2. That means that the Greatest Common Factor of 2 and 20 is 2.

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