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Last updated on October 8, 2025

Factorial of 25

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 25.

Factorial of 25 for US Students
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What is the Factorial of 25?

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 25, we write it as: 25! = 25 × 24 × 23 × 22 × 21 × 20 × 19 × 18 × 17 × 16 × 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 15,511,210,043,330,985,984,000,000.

 

Therefore, the factorial of 25 is 15,511,210,043,330,985,984,000,000.

Professor Greenline from BrightChamps

Important Glossaries of Factorial of 25

  • Factorial: The method of multiplying a number by all the natural numbers smaller than itself, denoted by an exclamation mark (!).

 

  • Natural numbers: Positive integers starting from 1, 2, 3, and so on.

 

  • Combinatorics: A field of mathematics concerning the counting, arrangement, and combination of objects, often using factorials.

 

  • Permutation: An arrangement of objects in a specific order, calculated using factorials.

 

  • Sextillion: A large number, 1 followed by 21 zeros.
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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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