Factors of 18, 19 and 21

Here we will list all the Factors of 18, 19 and 21.

Factors of 18
The Factors of 18 are the numbers that you can evenly divide into 18. Thus, the Factors of 18 are 1, 2, 3, 6, 9, and 18.

Factors of 19
The Factors of 19 are the numbers that you can evenly divide into 19. Thus, the Factors of 19 are 1 and 19.

Factors of 21
The Factors of 21 are the numbers that you can evenly divide into 21. Thus, the Factors of 21 are 1, 3, 7, and 21.

Do you want to know the Factors of 18, 19 and 21 because you want to know the greatest factor they have in common?

If so, you compare the list of Factors of 18, 19 and 21 to find the largest number they have in common.

As you can see from the lists above, the Greatest Common Factor (GCF) of 18, 19 and 21 is 1.

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Factors of 18, 19 and 22
Here are the factors of the next three numbers that we compared.