Factors and Prime Factors of 72 and 73

This video tutorial explains how to find the factors of 72 and 73. It begins with identifying the factors of 72 through multiplication pairs and then demonstrates how to create a factor tree to find its prime factors. The video also covers the factors of 73, highlighting that it is a prime number with only two factors: 1 and 73. The tutorial concludes with a call to action for viewers to subscribe for more educational content.

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

• Find pairs of numbers that multiply to the number

• Multiply the number by itself

• List all numbers up to the number

• Divide the number by 2

Which of the following is a factor pair of 72?

• 7 and 10

• 8 and 9

• 5 and 14

• 6 and 11

How many times does 2 go into 72 in the factor tree?

• 18 times

• 12 times

• 9 times

• 36 times

What is the prime factorization of 72?

• 2 x 3^3

• 2^2 x 3^3

• 2^3 x 3^2

• 2^4 x 3

What makes 73 different from 72 in terms of factors?

• 73 is an even number

• 73 is a prime number

• 73 is a composite number

• 73 has more factors

What are the factors of 73?

• 1, 2, and 73

• 1 and 73

• 1, 2, 3, and 73

• 1, 3, and 73

Why does 73 have fewer factors than 72?

• Because it is a composite number

• Because it is a larger number

• Because it is a prime number

• Because it is an even number