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Find the GCF for the given list. 8, 28

User Jacoulter
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The greatest common factor (GCF) is the biggest number that can multiply into a set of numbers.

List the factors for 8 and 28:

Factors of 8: {1,2,4,8}
Factors of 28: {1,2,4,7,14,28}

There are three common factors between 8 and 28:

1, 2, 4

The biggest number of these three is 4, so the GCF for 8 and 28 will be 4.
User Amaynut
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The Greatest Common Factor is 4. Choose the biggest number you can find that goes into both numbers.
User Gust Van De Wal
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