How to Find Factors of 18?

To find all the factors of 18 , we can use the multiplication method. According to which we will find all the pairs of number which when multiplies together gives 18 as a result.

Steps for Multiplication method are:

  • Start with 1 : Multiply 1 by 18, the result will be 18. (1 , 18) is the first factor pair for 18.
  • Try with 2 : Multiply 2 by 9, the result will be 18. (2 , 9) is the other factor pair for 18.
  • Try with 3 : Multiply 3 by 6, the result will be 18. (3 , 6) is the other factor pair for 18.
  • Continue till we get all the required pairs.

Factors of 18 are:

  • 1 × 18 = 18
  • 2 × 9 = 18
  • 3 × 6 = 18

So, the Factors of 18 are 1, 2, 3, 6, 9 and 18.

Prime Factorization of 18

Prime Factorization is a method of finding the prime factors by dividing the given number from a prime number. This factorization start from the smallest divisible prime number, and continue further till we get 1 as our quotient.

Therefore, we simply divide the given number to see which prime numbers it can be divided by. This method helps us identify all the prime factors of a number. The process of division is explained below -:

Step 1: Start with 18.

Step 2: Divide by 2: 18 ÷ 2 = 9.

Step 3: Divide by 3: 9 ÷ 3 = 3.

Step 4: Divide by 3 : 3 ÷ 3 = 1

Read More, Prime Factorization.

Factors of 18

Factors of 18 are 1, 2, 3, 6, 9 and 18. The factors of a number give back the original number when multiplied in pairs. Generally, the factors of the number are the number that divides the original number completely. The number 18 is composite because it has more factors other than 1 and the number itself.

In this article, we are going to learn what are the factors of 18, prime factors of 18 and how to find factors of 18 along with some examples based on this concept.

Table of Content

  • What is a Factor?
  • What are the Factors of 18?
  • How to Find Factors of 18?
  • Factor Tree of 18
  • Factor Pairs of 18

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