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Least Common Multiple Greatest Common Factor

Least Common Multiple Greatest Common Factor

Assessment

Presentation

Mathematics

7th Grade

Hard

Created by

Joseph Anderson

FREE Resource

10 Slides • 15 Questions

1

Greatest Common Factor and Least Common Multiple

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2

Objectives

  • Perform complete factorization of composite numbers.

  • Determine the Greatest Common Factor (GCF) of two or more numbers.

  • Determine the Least Common Multiple (LCM) of two or more numbers.

  • Solve real-life problems involving GCF and LCM.

3

Multiple Choice

These are natural numbers with at least three natural number divisors.

1

Composite Numbers

2

Prime Numbers

3

Even Numbers

4

Odd Numbers

4

Multiple Choice

A ______ is a quantity that divides another quantity evenly.

1

Factor

2

Multiple

3

Greatest Common Factor

4

Least Common Multiple

5

Multiple Choice

A ______ is a product obtained by multiplying a number by a natural number.

1

Factor

2

Multiple

3

Greatest Common Factor

4

Least Common Multiple

6

Multiple Choice

It is a process of expressing a composite number as a product of its prime factors.

1

Factoring

2

Multiplying

3

Prime Factorization

4

Tree Diagram

7

Greatest Common Factor

The greatest common factor (GCF) of two or more numbers is the largest number that divides the given numbers evenly.

8

What is the GCF of 12 and 16?

Solution:











9

What is the GCF of 24 and 36?

Solution:










10

What is the GCF of 48, 60, and 96?

Solution:









11

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14

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16

Least Common Multiple

The least common multiple (LCM) of two or more numbers is the smallest natural number that is a multiple of the given numbers.

17

What is the LCM of 14 and 21?

Solution:











18

What is the LCM of 6 and 15?

Solution:










19

What is the LCM of 3, 8, and 9?

Solution:









20

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21

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22

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23

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24

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25

Open Ended

Share your learning insights regarding the lessons that were discussed.

Greatest Common Factor and Least Common Multiple

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