MGSE6.NS.4

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​Standard

​Learning Targets

• I can find factor pairs of any numbers between 1 and 100.

• I can explain what the greatest common factor is.

• I can find the greatest common factor of two numbers less than or equal to 100.

​Vocabulary

1. Factor

2. Prime Factorization

3. Factor Tree

4. Greatest Common Factor

To simplify fractions (and algebra later in math)

A number or variable that can be multiplied with another number or variable to produce the given term​

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​What is a Factor?

Finding which prime factors multiply to create the actual number

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Prime Factorization

A diagram that shows all the factors of a given number​

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Factor Tree

• 2 - is the last digit an even number

• 3 - is the sum of the digits divisible by 3

• 4 - are the last 2 digits divisible by 4

• 5 - is the last digit a 0 or 5

• 6 - is the number divisible by both 2 and 3

• 9 - is the sum of the digits divisible by 9

• 10 - is the last digit a 0

• Find ALL factors of each number.

• Write the factors in numerical order from least to greatest.

• Find the common factors (CF)

• The greatest of the common factors is the GCF.

• Show all work in a neat and orderly way.

• 16 = 1, 2, 4, 8, 16

• 24 = 1, 2, 3, 4, 6, 8, 12, 24

• If we will compare the list of factors of 16 and 24, we can identify the common factors.

• GCF is the highest common factor that appears on the list.

• The GCF of 16 and 24 is 8.