December 23, 2022

Prime Factorization is a mathematical function used to break down a composite number into its prime factors. Composite numbers could be divided by more than just 1 and itself to result in a whole number. Prime numbers can just be divided by 1 and themselves, for example 2, 3, 5, and 7.


By figuring out the prime factors of a number, we can streamline equations and fractions, also understand the properties of that number. Let’s look closely.

Methods for Finding Prime Factorization

There are two major methods for figuring out prime factorization. You can use a factor tree, or you can factor by dividing by prime numbers. Both methods will yield you the exact outcome.

Factor Tree Method


The primary way is utilizing a factor tree. To create a factor tree:

  1. Initiate by noting the value you are attempting to factor at the start of the page.

  2. Underneath, create branches for the factors.

  3. Continue creating branches and factoring until you arrive at a prime number.


Here’s an example of the thinking process:

  • We know that 6 * 6 = 36.

  • Is 6 a prime number? No. 2 * 3 = 6.

  • Are 2 and 3 prime numbers? Yes. We are done here.

The prime factorization of 36 will be 2 x 2 x 3 x 3. To envision this process, we could create a factor tree for 36 as follows.



As you can see, the prime factorization of 36 is figured out by multiplying the prime factors at the bottom of the tree, which are 2 * 3 * 2 * 3.

Division Method

The second process for finding the prime factorization of a number is to initiate utilizing a record of prime numbers. Write down the number you are trying to factor. Subsequently, divide the value by a prime number that divides evenly into it. It’s simplest to begin with the first few prime numbers, like 2, 3, and 5.


Let’s use the division method for prime factorization of 36.

  • What is a prime number that divides into 36? 2 → 2 * 18 = 36

  • Is 18 a prime number? No.

  • What is a prime number that divides into 18? 2 → 2 * 9 = 18

  • Is 9 a prime number? Nope.

  • What is a prime number which divides into 9? 3 → 3 * 3 = 9

  • Is 3 a prime number? Yes. We are done here.

The prime factorization of 36 is 2 * 2 * 3 * 3, and here’s a depiction.

Utilizing both methods, we worked out the prime factorization for 36 is 2 * 2 * 3 * 3.

Examples of Prime Factorization

Despite the fact that we’ve previously worked by the means of a some examples, let’s do one more employing both methods.


Let’s use a factor tree to find the prime factorization of 100.

We know that 4 * 25 = 100.

2 * 2 = 4, and 2 is a prime number. 5 * 5 = 25, and 5 is a prime number. we are done here.

The prime factorization of 100 is 2 * 2 * 5 * 5.


Let’s test the division process:

  • What is the prime factorization for 100?

  • What is a prime number which divides into 100? 2 * 50 = 100

  • Is 50 a prime number? No.

  • What is a prime number which divides into 50? 2 * 25 = 50

  • Is 25 a prime number? No.

  • What is a prime number that divides into 25? 5 * 5 = 25

  • Is 5 a prime number? Yes. We are done.

The prime factorization of 100 is 2 * 2 * 5 * 5.

Uses of Prime Factorization

Prime factorization has many realistic applications in mathematics. One of the main uses is simplifying fractions. By finding the prime factorization of the numerator and denominator of a fraction, you can cancel out common prime factors and simplify the fraction.


For example, the fraction 8/24 can be simplified by finding the prime factorization of both values. 8 = 2 * 2 * 2 and 24 = 2 * 2 * 2 * 3. By canceling out the common prime factor of 2, we are left with the simplified fraction of 1/3.


To see how this functions, let's use prime factorization to simplify the fraction 8/24. First, work on prime factorization of the numerator and denominator.


8 = 2 * 2 * 2

24 = 2 * 2 * 2 * 3


Subsequently, we cancel out any common prime factors among the numerator and denominator.


8/24 = 2 * 2 * 2 / 2 * 2 * 2 * 3 = 1/3


After ruling out the common prime factors of 2, we are remained with the streamlined fraction of 1/3.


Prime factorization also executes a crucial role in cryptography and computer science. As you proceed in advanced math and science studies, you will find additional utilizations for prime factorization and be glad you are an expert.

It’s the Best Time to Advance Your Math Abilities

Prime factorization is a crucial concept in math that allows us to streamline equations and fractions, also learn the characteristics of a number. By practicing and understanding the methods and uses of prime factorization, we can enhance our math skills and problem-solving skills.


If you need assistance mastering prime factorization, contemplate reaching out to Grade Potential tutoring for expert assistance. Grade Potential instructors are skilled and educated in mathematics. They could give customized instruction and assistance to help you comprehend and apply prime factorization in your studies.


With the help of Grade Potential tutoring, you could enhance your math skills, improve your confidence, and achieve your academic goals.