Multiples and Factors Concepts

The video tutorial by Mr. J covers the concepts of factors and multiples, including common factors, greatest common factor (GCF), common multiples, and least common multiple (LCM). It begins with an introduction to factors, explaining how to determine the factors of a number and identify common factors. The tutorial then moves on to multiples, illustrating how to find multiples of a number and identify common multiples. The video provides examples using numbers 12, 18, 6, and 15 to demonstrate these concepts, emphasizing the importance of understanding these foundational math topics.

What is a factor of a number?

• A number that can be divided by the given number without a remainder

• A number that is less than the given number

• A number that can be multiplied by the given number to get a product

• A number that is greater than the given number

Which of the following is a factor of 12?

• 11

• 5

• 7

• 6

Which of the following is NOT a factor of 18?

• 2

• 9

• 3

• 5

What is the greatest common factor (GCF) of 12 and 18?

• 3

• 9

• 12

• 6

What is a multiple of a number?

• A number that is the result of multiplying the given number by an integer

• A number that is less than the given number

• A number that divides the given number without a remainder

• A number that is greater than the given number

Which of the following is a multiple of 6?

• 11

• 18

• 22

• 14

What is the least common multiple (LCM) of 6 and 15?

• 15

• 30

• 60

• 45

Which of the following is a common multiple of 6 and 15?

• 35

• 30

• 25

• 20

How many common multiples do two numbers have?

• None

• Two

• One

• Infinite

What is the first step in finding the least common multiple (LCM)?

• Subtract the smaller number from the larger number

• Add the numbers together

• List the multiples of each number

• List the factors of each number