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Last updated on October 8, 2025

Factorial of 5

Professor Greenline Explaining Math Concepts

Factorial is the process of taking a number and multiplying it by all the lesser, natural numbers. The factorial of a number n is denoted by n!. In this topic, we will learn about the factorial of 5.

Factorial of 5 for US Students
Professor Greenline from BrightChamps

What is the Factorial of 5?

We write the factorial of a number using an exclamation mark (!) after it.

 

If n is a natural number greater than or equal to 1, then: n! = n × (n - 1) × (n - 2) × (n - 3) × … × 3 × 2 × 1

 

To find the factorial of 5, we write it as: 5! = 5 × 4 × 3 × 2 × 1 = 120.

 

Therefore, the factorial of 5 is 120.

Professor Greenline from BrightChamps

Important Glossaries of Factorial of 5

  • Factorial: The way of multiplying all the natural numbers smaller than the original number is known as factorial, and it is expressed with an exclamation mark (!).

 

  • Natural numbers: Counting numbers from 1, 2, 3, and so on.

 

  • Permutation: An arrangement of objects where order matters, often calculated using factorials.

 

  • Combinatorics: A branch of mathematics dealing with combinations of objects, frequently involving factorials.

 

  • Exclamation Mark: A symbol used to denote the factorial of a number, represented as (!).
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Jaskaran Singh Saluja

About the Author

Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.

Max, the Girl Character from BrightChamps

Fun Fact

: He loves to play the quiz with kids through algebra to make kids love it.

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