Finding the Greatest Common Factor

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Finding the Greatest Common Factor - PowerPoint PPT Presentation

Finding the Greatest Common Factor. Grade 5. Lesson Objectives. 6.B.1.c Identify the greatest common factor 3.A.1.a Use technology tools, including software and hardware, from a range of teacher-selected options to learn a new content or reinforce skills. Think Backwards….

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Finding the Greatest Common Factor

Lesson Objectives
• 6.B.1.c Identify the greatest

common factor

3.A.1.a Use technology tools, including software and hardware, from a range of teacher-selected options to learn a new content or reinforce skills

Think Backwards…
• Find Factors
• Circle Common Factors
• Group Greatest Factor
Step 1: Find the Factors
• 24 – 1,2,3,4,6,8,12,24
• 36 – 1,2,3,4,6,9,12,18,36
Step 2: Circle Common Factors
• 24 – 1,2,3,4,6,8,12,24
• 36 – 1,2,3,4,6,9,12,18,36
Step 3: Group the Greatest Factor
• 24 – 1,2,3,4,6,8,12,24
• 36 – 1,2,3,4,6,9,12,18,36

The Greatest Common Factor of 24 and 36 is…

12

Find the GCF of 12 and 24
• Step 1: Find the factors
• 12 – 1,2,3,4,6,12
• 24 – 1,2,3,4,6,8,12,24
Find the GCF of 12 and 24
• Step 2: Circle the common factors
• 12 – 1,2,3,4,6,12
• 24 – 1,2,3,4,6,8,12,24
Find the GCF of 12 and 24
• Step 3: Group the greatest factor
• 12 – 1,2,3,4,6,12
• 24 – 1,2,3,4,6,8,12,24

12