Prime Factor Decomposition

Our paper today is dedicated to prime factor decomposition, a procedure that is basic and very important. This procedure is basic, and it is used to successfully implement many other mathematical procedures and operations that follow at a certain more difficult level!

In the text below you have the opportunity to see:

  • Rules for prime factor decomposition.
  • A few examples with branching of multiples.
  • Table of prime factors of numbers from 1 to 100.
  • Lots of video examples to help you gain skill and routine in practicing the factoring procedure.

Let’s start with:

Rules For Prime Factor Decomposition

Of course, before we start the procedure for prime factor decomposition, we need to define:

  • A prime number is a number that can be divided only by the number 1 and by itself without getting a remainder!
  • A complex number is a number which, in addition to being divisible by the number 1 and by itself, can be divided by at least one other part without obtaining a certain remainder!

Now that we already know what a prime number is and what a complex number is, we can start with the rule for dividing prime factors, which reads:

We divide a given number into multiples until all such multiples are in the form of prime multiples! This means that the arrangement and exact path of multipliers that we will choose during the procedure is not important at all.

Examples

Let’s look at some examples of prime factor decomposition, below in the same text!

Example 1: Break down the number 6 into prime factors!

We present the number 6 as a product of the numbers 2 and 3! Because the numbers 2 and 3 are prime numbers, the decomposition procedure ends immediately in the first step! Decomposing the number 6 into multiple branches looks like this:

Prime Factor Decomposition For Number 6

The number 6, through its prime multiples, can be represented as:

6=2×3

Example 2: Break down the number 8 into prime factors!

We present the number 8 as a product of 2 and 4! The number 2 is a prime number, but the number 4 is not a prime number, so we continue to break down the number 4 further! The number 4 can be represented as the product of 2 and 2! With this in mind, we can represent the branch of multiples of the number 8, which is represented in the figure below:

Prime Factor Decomposition For Number 8

The number 8, through its multiples, can be represented as:

8=2x2x2

Example 3: Break down the number 18 into prime factors!

We present the number 18 as a product of 2 and 9! The number 2 is a prime number, but the number 9 is not a prime number, so we continue to break down the number 9 further! The number 9 can be represented as a product of 3 and 3! With this in mind, we can represent the branch of multiples of the number 18, which is represented in the figure below:

Prime Factor Decomposition For Number 18

The number 18, through its multiples, can be represented as:

18=2x3x3

Prime Factor Decomposition Table For The Numbers 1 To 100

Below on this page is a table that contains all the prime factor decomposition for all numbers from 1 to 100. Of course, in the table itself, you have data that shows which of the numbers are prime numbers, so logically there is no need to further decompose them!

NumberPrime Factor Decomposition
1Prime number
2Prime number
3Prime number
44=2×2
5Prime number
66=2×3
7Prime number
88=2x2x2
99=3×3
1010=2×5
11Prime number
1212=2x2x3
13Prime number
1414=2×7
1515=3×5
1616=2x2x2x2
17Prime number
1818=2x3x3
19Prime number
2020=2x2x5
2121=3×7
2222=2×11
23Prime number
2424=2x2x2x3
2525=5×5
2626=2×13
2727=3x3x3
2828=2x2x7
29Prime number
3030=2x3x5
31Prime number
3232=2x2x2x2x2
3333=3×11
3434=2×17
3535=5×7
3636=2x2x3x3
37Prime number
3838=2×19
3939=3×13
4040=2x2x2x5
41Prime number
4242=2x3x7
43Prime number
4444=2x2x11
4545=3x3x5
4646=2×23
47Prime number
4848=2x2x2x2x3
4949=7×7
5050=2x5x5
5151=3×17
5252=2x2x13
53Prime number
5454=2x3x3x3
5555=5×11
5656=2x2x2x7
5757=3×19
5858=2×29
59Prime number
6060=2x2x3x5
61Prime number
6262=2×31
6363=3x3x7
6464=2x2x2x2x2x2
6565=5×13
6666=2x3x11
67Prime number
6868=2x2x17
6969=3×23
7070=2x5x7
71Prime number
7272=2x2x2x3x3
73Prime number
7474=2×37
7575=3x5x5
7676=2x2x19
7777=7×11
7878=2x3x13
79Prime number
8080=2x2x2x2x5
8181=3x3x3x3
8282=2×41
83Prime number
8484=2x2x3x7
8585=5×17
8686=2×43
8787=3×29
8888=2x2x2x11
89Prime number
9090=2x3x3x5
9191=7×13
9292=2x2x23
9393=3×31
9494=2×47
9595=5×19
9696=2x2x2x2x2x3
97Prime number
9898=2x7x7
9999=3x3x11
100100=2x2x5x5
101Prime number

Video Examples

We hope that everything that was presented to you above on the page made it easier for you to work with decomposing prime multiples. In the video below, you can see many different examples of prime factor decomposition using multiplier branches!

Video Examples
Prime Factor Decomposition – Video Examples

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