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Last updated on January 21st, 2025

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Factors of 80

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Foundation
Intermediate
Advance Topics

The numbers multiplied to get 80 as the product are the factors of 80. So, in daily life, factors are used to distribute teams in groups. Sometimes, for recipes, cooks apply the factors' methods to adjust ingredients properly.

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What are the factors of 80?

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80.

 

Negative factors of 80- There’s always a corresponding negative factor for each positive factor of 80.


Negative factors of 80: -1, -2, -4, -5, -8, -10, -16, -20, -40, -80

 

Prime Factors of 80- The prime numbers are the prime factors, that can only be divided by 1 and the number itself.


Prime factors of 80: 2, 5

 

Prime Factorization of 80- Prime factorization breaks 80 into its prime factors and expresses its product using exponents.


80 is prime factorized as 24 × 51

 

An overview of the factors of 80:

 

Positive Factors

1, 2, 4, 5, 8, 10, 16, 20, 40, 80

Negative Factors

-1, -2, -4, -5, -8, -10, -16, -20, -40, -80

Prime Factors

2, 5

Prime Factorization

24 × 51

 

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How to find the Factors of 80

Factors can be found using different methods. Mentioned below are some commonly used methods:

 

 

  • Finding factors using multiplication
  • Finding factors using division method
  • Prime factors and Prime factorization 
     
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Finding Factors Using Multiplication Method

To find factors using multiplication, we need to identify the pairs of numbers that are multiplied to give 80. Identifying the numbers which are multiplied to get the number 80 is the multiplication method.


Step 1: Multiply 80 by 1, 80 × 1 = 80.


Step 2: Check for other numbers that give 80 after multiplying


2 × 40 = 80
4 × 20 = 80
5 × 16 = 80
8 × 10 = 80


Therefore, the positive factor pairs of 80 are: (1, 80), (2, 40), (4, 20), (5, 16), (8, 10). All these factor pair result in 80. For every positive factor, there is a negative factor.
 

Factors of 80 by multiplication method

So the pair of numbers will be (1,80), (2,40), (4,20), (5,16) and (8,10)
 

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Finding Factors Using Division Method

Dividing the given numbers with the whole numbers until the remainder becomes zero and listing out the numbers which results as a whole numbers as factors. Factors can be calculated by following simple division method - 


Step 1: Divide 80 by 1, 80 ÷ 1 = 80.


Step 2: Continue dividing 80 by the numbers until the remainder becomes 0.


80 ÷ 1 = 80
80 ÷ 2 = 40
80 ÷ 4 = 20
80 ÷ 5 = 16
80 ÷ 8 = 10


Therefore, the factors of 80 are: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80.
 

Factors of 80 by the division method

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Prime Factors and Prime Factorization

The factors can be found by dividing it with a prime numbers. We can find the prime factors using the following methods: 

 

 

  • Using prime factorization
  • Using factor tree

 

Using Prime Factorization: In this process, prime factors of 80 divide the number to break it down in the multiplication form of prime factors till the remainder becomes 1.


80 ÷ 2 = 40
40 ÷ 2 = 20
20 ÷ 2 = 10
10 ÷ 2 = 5
5 ÷ 5 = 1

 

The prime factors of 80 are 2 and 5.


The prime factorization of 80 is: 24 × 5.
 

Factors of 80 using factor tree

 

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Factor Tree

 Factor tree is the graphical representation of breaking down any number into prime factors. The following step shows - 


Step 1: Firstly, 80 is divided by 2 to get 40.


Step 2: Now divide 40 by 2 to get 20.


Step 3: Then divide 20 by 2 to get 10.


Step 4: Divide 10 by 2 to get 5.


Here, 5 is the smallest prime numbers, that cannot be divided anymore.


So, the prime factorization of 80 is: 24 × 5.

 

Factor Pairs: Two numbers that are multiplied to give a specific number are called as factor pairs. Both positive and negative factors constitute factor pairs. 


Positive factor pairs of 80: (1, 80), (2, 40), (4, 20), (5, 16), and (8, 10).

Negative factor pairs of 80: (-1, -80), (-2, -40), (-4, -20), (-5, -16), and (-8, -10).

 

 

 

 

Factor Pairs- Factor pairs of 80 are a team of 2 factors each. Their product will be equal to the number, that is 80.

 

Positive Factor Pairs: (1,80), (2,40), (4,20), (5,16), (8,10)


Negative Factor Pairs: (-1,-80), (-2, -40), (-4, -20), (-5, -16), (-8, -10)

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Common Mistakes and How to Avoid Them in Factors of 80

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Factors of 80, Examples

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Problem 1

There are 8 friends and 80 cookies. How will they divide it equally?

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Explanation

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Problem 2

A field is rectangular, the length of the field is 10 meters and the total area is 80 square meters. Find the width?

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Explanation

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Problem 3

There are 16 bags and 80 cookies. How many cookies will be in each bag?

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Explanation

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Problem 4

In a class, there are 80 students, and 5 groups. How many students are there in each group?

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Explanation

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Problem 5

80 books need to be arranged in 5 shelves. How many books will go on each shelf?

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Explanation

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FAQs on Factors of 80

1.What is the factor tree of 80?

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2.Mention the prime factors of 80.

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3.Is 80, a multiple of 4?

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4.Mention the factor pairs of 80?

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5.What is the square of 80?

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Important glossaries for the Factors of 80

  • Factors: The numbers that divide the given number without leaving a remainder are called factors. For example, the factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40, and 80.

 

  • Prime factors: The factors which are prime numbers. For example, 2 and 5 are prime factors of 80.

 

  • Factor pairs: Two numbers in a pair that are multiplied to give the original number are called factor pairs. For example, the factor pairs of 80 are (1, 80), (2, 40), etc.
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Hiralee Lalitkumar Makwana

About the Author

Hiralee Lalitkumar Makwana has almost two years of teaching experience. She is a number ninja as she loves numbers. Her interest in numbers can be seen in the way she cracks math puzzles and hidden patterns.

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Fun Fact

: She loves to read number jokes and games.

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