What is 500 factorial ?

Steps to calculate factorial of 500

To find 500 factorial, or 500!, simply use the formula that multiplies the number 500 by all positive whole numbers less than it.

Let’s look at how to calculate the Factorial of 500:

500! is exactly :
1.22 x 10^1134
Factorial of 500 can be calculated as:
500! = 500 x 499 x 498 x 497 x … x 3 x 2 x 1

Factorials of Numbers similar to 500

What is Factorial?

In mathematics, a factorial is the product of all positive integers less than or equal to a given number. The factorial of 500, denoted as 500!, is a vast number that extends beyond typical calculating capabilities. Factorials, especially those of large numbers like 500, are significant because they play a crucial role in various mathematical fields including combinatorics, probability, and series expansions.

Formula to Calculate the Factorial of 500

To calculate the factorial of a number, you multiply the number by every positive integer below it down to 1. The basic formula is:

n! = n × (n-1) × … × 3 × 2 × 1

Applying this to 500, we multiply all numbers from 500 down to 1. Since this process would result in an extremely large number, 500 factorial is typically not calculated explicitly but represented symbolically or computed using specialized software.

What is the Factorial of 500 Used For?

Factorials are used to determine the number of ways in which a set of objects can be arranged (permutations). The factorial function, particularly for a large value like 500, is used in algorithms that solve combinatorial problems, in statistical formulas to define probabilities, and is of theoretical interest in understanding the behavior of large numbers in mathematics.


Here are some exercises to help you explore the concept of factorial:

  • Even without calculating the exact number, explain why the factorial of 500 ends with at least one zero.
  • What is the number of possible combinations if you have a deck of 500 different cards?

Solutions to Exercises

The factorial of 500 ends with zeros because the number contains multiple factors of 10, which is the product of 5 and 2, both abundant in the prime factorization of 500!.

For a deck of 500 different cards, the number of possible combinations is 500! This concept is essential to understand the true randomness and complexity in shuffling a card deck.

Frequently Asked Questions

Is it possible to write down the number 500 factorial on paper?

Writing down the full number of 500 factorial on paper is not feasible because it contains hundreds of digits. It’s better represented symbolically or calculated with software.

Why is the factorial of 500 significant?

The factorial of 500 is significant as it represents immense combinatory possibilities and is useful in understanding mathematical problems involving large sets.

How is 500 factorial used in real life?

In real life, 500 factorial is beyond common practical application but conceptually, it helps in cryptography, statistical sampling, and algorithmic complexity.

Other conversions of the number 500