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Gilliam III - UNIT 1 Study Guide - 9132596 Unit 1 Study Guide Attached are videos for itch as you are Select All reviewing for your UNIT TEST (50 points). How do I find the Greatest Common Factor (GCF)? Finding the GCF Summary: How do I find the LCM? Finding the LCM Summary: HOW TO: Use the Distributive Property to express each sum the

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How do I find the Greatest Common Factor (GCF)?

The greatest common factor is simply the greatest factor that divides two number evenly.

Example:

Let us have two numbers 12 and 18

List the prime factors of 12:

2, 2, 3

List the prime factors of 18:

2, 3, 3

Now multiply those factors which are common in both numbers.

As you can see 2 and 3 are common in both.

2×3 = 6

Therefore, the Greatest Common Factor of 12 and 18 is 6.

How do I find the Least Common Multiple (LCM)?