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How do you find the GCF of 21 and 14?

Answer 1

Nova Allen

See a solution process below:

Determine each number's prime factors as follows:

#21 = 3 xx 7#

#14 = 2 xx 7#

Next, ascertain the GCF by identifying the common factors:

#21 = 3 xx color(red)(7)#

#14 = 2 xx color(red)(7)#

Consequently:

#"GCF" = color(red)(7)#

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Answer 2

Riley Anderson

To find the greatest common factor (GCF) of 21 and 14, you can identify the common factors of both numbers and then determine the greatest among them. The common factors of 21 and 14 are 1 and 7. Therefore, the GCF of 21 and 14 is 7.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.