# How do you find the greatest common factor of 68, 34?

Once you write down every number as the sum of its prime factors, you will be able to see what you have:

\observe that the sum of the common factors yields the GCF.]

If you had known that 34 is half of 68, you could have known this right away.

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To find the greatest common factor (GCF) of 68 and 34, you can use prime factorization.

First, find the prime factorization of each number:

- For 68: ( 68 = 2 \times 2 \times 17 )
- For 34: ( 34 = 2 \times 17 )

Identify the common prime factors and their minimum exponents:

- The common prime factors are 2 and 17.

Multiply the common prime factors together to find the GCF: ( GCF(68, 34) = 2 \times 17 = 34 )

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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.

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.

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.

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