Last updated on May 26th, 2025
Factors are the numbers that divide any given number evenly without remainder. In daily life, we use factors for tasks like sharing items equally, arranging things, etc. In this topic, we will learn about the factors of 320, how they are used in real life, and tips to learn them quickly.
The numbers that divide 320 evenly are known as factors of 320.
A factor of 320 is a number that divides the number without remainder.
The factors of 320 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, and 320.
Negative factors of 320: -1, -2, -4, -5, -8, -10, -16, -20, -32, -40, -64, -80, -160, and -320.
Prime factors of 320: 2 and 5. Prime factorization of 320: 26 × 5.
The sum of factors of 320: 1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 32 + 40 + 64 + 80 + 160 + 320 = 762
Factors can be found using different methods. Mentioned below are some commonly used methods:
To find factors using multiplication, we need to identify the pairs of numbers that are multiplied to give 320. Identifying the numbers which are multiplied to get the number 320 is the multiplication method.
Step 1: Multiply 320 by 1, 320 × 1 = 320.
Step 2: Check for other numbers that give 320 after multiplying
2 × 160 = 320
4 × 80 = 320
5 × 64 = 320
8 × 40 = 320
10 × 32 = 320
16 × 20 = 320
Therefore, the positive factor pairs of 320 are: (1, 320), (2, 160), (4, 80), (5, 64), (8, 40), (10, 32), (16, 20). For every positive factor, there is a negative factor.
Dividing the given numbers with the whole numbers until the remainder becomes zero and listing out the numbers which result as whole numbers as factors. Factors can be calculated by following a simple division method -
Step 1: Divide 320 by 1, 320 ÷ 1 = 320.
Step 2: Continue dividing 320 by the numbers until the remainder becomes 0.
320 ÷ 1 = 320
320 ÷ 2 = 160
320 ÷ 4 = 80
320 ÷ 5 = 64
320 ÷ 8 = 40
320 ÷ 10 = 32
320 ÷ 16 = 20
Therefore, the factors of 320 are: 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320.
The factors can be found by dividing it with prime numbers. We can find the prime factors using the following methods:
Using Prime Factorization: In this process, prime factors of 320 divide the number to break it down in the multiplication form of prime factors till the remainder becomes 1.
320 ÷ 2 = 160
160 ÷ 2 = 80
80 ÷ 2 = 40
40 ÷ 2 = 20
20 ÷ 2 = 10
10 ÷ 2 = 5
5 ÷ 5 = 1
The prime factors of 320 are 2 and 5.
The prime factorization of 320 is: 26 × 5.
The factor tree is the graphical representation of breaking down any number into prime factors. The following step shows -
Step 1: Firstly, 320 is divided by 2 to get 160.
Step 2: Now divide 160 by 2 to get 80.
Step 3: Then divide 80 by 2 to get 40.
Step 4: Divide 40 by 2 to get 20.
Step 5: Divide 20 by 2 to get 10.
Step 6: Divide 10 by 2 to get 5. Here, 5 is the smallest prime number, that cannot be divided anymore. So, the prime factorization of 320 is: 26 × 5.
Factor Pairs: Two numbers that are multiplied to give a specific number are called factor pairs. Both positive and negative factors constitute factor pairs.
Positive factor pairs of 320: (1, 320), (2, 160), (4, 80), (5, 64), (8, 40), (10, 32), and (16, 20).
Negative factor pairs of 320: (-1, -320), (-2, -160), (-4, -80), (-5, -64), (-8, -40), (-10, -32), and (-16, -20).
Mistakes are common while finding factors. We can identify and correct those mistakes using the following common mistakes and the ways to avoid them.
There are 16 employees and 320 tasks. How will they divide it equally?
They will get 20 tasks each.
To divide the tasks equally, we need to divide the total tasks by the number of employees.
320/16 = 20
A garden is rectangular, the length of the garden is 10 meters and the total area is 320 square meters. Find the width?
32 meters.
To find the width of the garden, we use the formula, Area = length × width
320 = 10 × width
To find the value of width, we need to shift 10 to the left side.
320/10 = width
Width = 32.
There are 8 packages and 320 items. How many items will be in each package?
Each package will have 40 items.
To find the items in each package, divide the total items by the packages.
320/8 = 40
In a tournament, there are 320 players, and 20 teams. How many players are there in each team?
There are 16 players in each team.
Dividing the players by the total teams, we will get the number of players in each team.
320/20 = 16
320 books need to be arranged in 5 bookshelves. How many books will go on each shelf?
Each of the shelves has 64 books.
Divide total books by shelves.
320/5 = 64
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.
: She loves to read number jokes and games.