factorial

What is the factorial of 2?
The factorial of a number is the multiplication of all the numbers between 1 and the number itself. It is written like this: n!. So the factorial of 2 is 2! (= 1 × 2). The factorial of 0 has value of 1, and the factorial of a number n is equal to the multiplication between the number n and the factorial of n-1. For example, 5! is equal to 4! × 5.
What is the value of 5 factorial?
The value of 5 factorial is 5×4×3×2×1 which is equal to 120. We can evaluate it using the factorial formula as well. 5! = 5 × 4! = 5 × 24 = 120. 10 factorial is nothing but 10 × 9 × 8 × 7 × 6 × 5 × 4 ×3 × 2 × 1 = 3,628,800. Zero factorial is interesting, and its value is equal to 1, i.e., 0! = 1.
What is a factorial function?
In Mathematics, factorial is an important function, which is used to find how many ways things can be arranged or the ordered set of numbers. The well known interpolating function of the factorial function was discovered by Daniel Bernoulli.
What is a factorial of 0?
The factorial of 0 has value of 1, and the factorial of a number n is equal to the multiplication between the number n and the factorial of n-1. For example, 5! is equal to 4! × 5. Here the first few factorial values to give you an idea of how this works: 0! 1! 2! 3! 4! 5! 6! 7! 8! 9! What is a Factorial Used For?

Definition of A Factorial

The factorial of a number is the multiplication of all the numbers between 1 and the number itself. It is written like this: n. So the factorial of 2 is 2(= 1 × 2). To calculate a factorial you need to know two things: 1. 0 = 1 2. n = (n - 1) × n The factorial of 0 has value of 1, and the factorial of a number n is equal to the multiplication

What Is A Factorial Used for?

Practically speaking, a factorial is the number of different permutations you can have with n items: 3 items can be arranged in exactly 6 different ways (expressed as 3). For example, let's see all the arrangements you can have with the three items, A, B and C: And in fact, 3 = 6. freecodecamp.org

Conclusion

The factorial is a pretty important operator to know if you are interested in statistics and probabilities. In this article you have learned a how to calculate a factorial, a simple application, and you have seen how to calculate it using JavaScript. Have fun with it freecodecamp.org

Introduction to Factorial How to simplify the factorial expressionsBBA MathsBCA Maths

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