LCM and GCF of 6 and 8

This video tutorial from Moomoomath and Science explains how to find the least common multiple (LCM) and greatest common factor (GCF) of the numbers 6 and 8 using a factor tree method. The instructor demonstrates factoring each number into its prime components, creating a chart to organize these primes, and then calculating the LCM by multiplying the highest power of each prime number present. The GCF is determined by identifying the common prime factors between the two numbers. The video concludes with a summary of the results: the LCM is 24 and the GCF is 2.

What method does the video suggest for finding the LCM and GCF?

• Using a number line

• Using a factor tree and prime numbers

• Using a calculator

• Using a graph

What are the prime factors of 6?

• 2 and 3

• 2 and 4

• 2 and 5

• 3 and 4

What are the prime factors of 8?

• 2 and 3

• 2 and 4

• 2, 2, and 2

• 3, 3, and 3

When creating the chart for LCM, what should you do if a prime number appears in both numbers?

• Add the numbers together

• Multiply the numbers together

• Bring down only one of the numbers

• Ignore the number

What is the LCM of 6 and 8?

• 30

• 24

• 18

• 12

What is the final step in finding the LCM?

• Divide the numbers

• Add all the numbers

• Multiply the numbers together

• Subtract the numbers

What is the rule for finding the GCF according to the video?

• Find the largest number

• Find a prime number common to both numbers

• Find the smallest number

• Find a number that divides both numbers

What is the GCF of 6 and 8?

• 2

• 1

• 4

• 3

Which prime number is common in both 6 and 8?

• 5

• 3

• 2

• 4

What does the video encourage viewers to do at the end?

• Like the video

• Subscribe and share

• Comment below

• Visit the website