Factorial of 120

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 120.

Factorial of 120 for US Students

What is the Factorial of 120?

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 120, we write it as: 120! = 120 × 119 × 118 × 117 × … × 3 × 2 × 1

Calculating this value involves multiplying all these numbers together, which results in a very large number.

Therefore, the factorial of 120 is an extremely large number that has 198 digits.

Important Glossaries of Factorial of 120

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 in a specific order, often calculated using factorials.

Combinatorics: A branch of mathematics dealing with combinations of objects, often using factorials to find the number of possible configurations.

Exponential growth: A fast increase in number, often seen in factorial calculations where numbers quickly become very large.

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.