Last updated on May 26th, 2025
Factors are the numbers that divide any given number evenly without a 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).
All these factor pairs result in 320.
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 in 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 10 teams and -320 points to distribute equally among them. How many points does each team get?
Each team gets -32 points.
To distribute the points equally, divide the total points by the number of teams.
-320/10 = -32
A piece of cloth of -320 meters is to be cut into 8 equal parts. How long is each part?
Each part is -40 meters long.
To find the length of each part, divide the total length by the number of parts.
-320/8 = -40
A factory produces -320 units of a product over 16 days. How many units are produced per day?
The factory produces -20 units per day.
To find the daily production, divide the total production by the number of days.
-320/16 = -20
A farmer has a debt of -320 dollars which he needs to pay in 5 equal installments. How much is each installment?
Each installment is -64 dollars.
Divide the total debt by the number of installments to find the amount of each installment.
-320/5 = -64
A team lost -320 points over 4 games. How many points did they lose per game?
The team lost -80 points per game.
To find the points lost per game, divide the total points lost by the number of games.
-320/4 = -80
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.