Understanding Factors and Prime Factorization

This video tutorial explains how to find the factors and prime factorization of the numbers 78 and 80. It begins with an introduction to the concepts of factors and prime factorization. The video then demonstrates the process of finding the factors of 78, followed by its prime factorization. Similarly, it covers the factors of 80 and its prime factorization. The tutorial concludes with a brief promotion of the channel, encouraging viewers to subscribe and share.

What is the first step in finding the factors of a number?

• Multiply the number by itself

• Find the square root of the number

• List the number and 1 as factors

• Divide the number by 2

Tags

CCSS.4.OA.B.4

Which of the following is a factor pair of 78?

• 4 and 20

• 2 and 39

• 5 and 15

• 1 and 80

What are the prime factors of 78?

• 2, 4, and 19

• 2, 3, and 13

• 3, 5, and 13

• 2, 3, and 11

What is the first step in the prime factorization of 80?

• Divide by 7

• Divide by 2

• Divide by 5

• Divide by 3

Tags

CCSS.4.OA.B.4

Which of the following is a factor pair of 80?

• 8 and 10

• 4 and 25

• 1 and 80

• 2 and 44

How many times is the number 2 used in the prime factorization of 80?

• Once

• Twice

• Three times

• Four times

What is the final prime factorization of 80?

• 2^2 * 5^2

• 2^5 * 3

• 2^4 * 5

• 2^3 * 5

Tags

CCSS.4.OA.B.4

Which of the following numbers is not a factor of 80?

• 4

• 5

• 9

• 10

Tags

CCSS.4.OA.B.4