Understanding Factors and Prime Numbers

The video tutorial introduces the concept of factors and multiples, emphasizing the importance of knowing math facts for fluency in mathematics and everyday life. It explains how to find factor pairs and differentiate between prime and composite numbers through examples. The tutorial also addresses common misconceptions, such as the belief that only even numbers can be composite, and provides practical applications, including a homework assignment to reinforce learning.

Why is it important to know your math facts fluently?

• It only helps in learning new languages.

• It is not important at all.

• It is only useful for passing exams.

• It helps in all aspects of math and life.

What is a factor pair?

• Two numbers that add up to a given number.

• Two numbers that subtract to give a difference.

• Two numbers that multiply to give a product.

• Two numbers that divide a given number.

How do you determine if a number is prime?

• It is an odd number.

• It has more than two factors.

• It has exactly two factors: 1 and itself.

• It is an even number.

What are the factors of 10?

• 1, 2, 5, 10

• 1, 3, 5, 10

• 1, 2, 4, 10

• 1, 2, 5, 11

Is the number 11 prime or composite?

• Neither

• Composite

• Prime

• Both

What are the factors of 14?

• 1, 2, 6, 14

• 1, 3, 7, 14

• 1, 2, 8, 14

• 1, 2, 7, 14

Is the number 17 prime or composite?

• Both

• Neither

• Prime

• Composite

What are the factors of 20?

• 1, 3, 5, 10, 20

• 1, 2, 4, 5, 10

• 1, 2, 5, 10, 20

• 1, 2, 4, 5, 10, 20

Is the number 22 prime or composite?

• Prime

• Composite

• Neither

• Both

What are the factors of 23?

• 1, 3, 23

• 1, 2, 23

• 1, 2, 3, 23

• 1, 23