Finding the Greatest Common Factor

This video tutorial explains how to find the Greatest Common Factor (GCF) of numbers using the division method. It covers finding the GCF for two numbers and extends the method to three or more numbers. The tutorial also discusses relatively prime numbers and their GCF, emphasizing that when numbers are relatively prime, their GCF is one. The video provides examples and recaps key steps to ensure understanding.

What does GCF stand for?

• Greatest Common Function

• Greatest Common Formula

• Greatest Common Fraction

• Greatest Common Factor

Which method is used to find the GCF in this lesson?

• Multiplication method

• Division method

• Subtraction method

• Addition method

What is the first step in finding the GCF of 44 and 64?

• Write the numbers side by side

• Subtract the numbers

• Multiply the numbers

• Add the numbers

What is the GCF of 44 and 64 using the division method?

• 16

• 2

• 4

• 8

What is the GCF of 11 and 16?

• 0

• 1

• 2

• 3

What is the GCF of 22 and 32?

• 0

• 1

• 2

• 3

What is the GCF of 22 and 32 when starting with 2?

• 0

• 1

• 2

• 3

What is the alternative starting factor for finding the GCF of 44 and 64?

• 4

• 5

• 6

• 3

What is the GCF of 44 and 64 when starting with 4?

• 16

• 2

• 4

• 8

What is the first step in finding the GCF of three numbers?

• Multiply the numbers

• Subtract the numbers

• Add the numbers

• Write the numbers side by side