What is 84 factorial ?

To find 84 factorial, or 84!, simply use the formula that multiplies the number 84 by all positive whole numbers less than it.

Let's look at how to calculate the Factorial of Eighty-four :

  84! is exactly : 3314240134565353266999387579130131288000666286242049487118846032383059131291716864129885722968716753156177920000000000000000000

  Factorial of 84 can be calculated as:
84! = 84 x 83 x 82 x 81 x ... x 3 x 2 x 1

  The number of trailing zeros in 84! is 20

  The number of digits in 84 factorial is 127.

• 80 Factorial
• 81 Factorial
• 82 Factorial
• 83 Factorial
• Factorial of 85
• Factorial of 86
• Factorial of 87
• Factorial of 88

A factorial is showed by an integer and an exclamation tag. In math concepts, factorial is a multiplication procedure of natural numbers .

It multiplies the number by every organic number that is less than it .

Symbolically, it is showed as "!".

The function is used, among other things, to find the "n" way things can be determined .

To find the factorial of any given number, substitute the value for n in the given method :

n! = n × (n-1) × (n-2) × (n-3) × ….× 3 × 2 × 1

The expansion of the formula provides numbers to be replicated with each other to get the factorial of the number.

We can also determine a factorial from the previous one. The factorial of any number is that number replicated the factorial of (that number minus 1).

So the rule is : n! = n × (n−1)!

Example :
84! Factorial = 84 x 83 x 82 x 81 x ... x 3 x 2 x 1 = 84 × 83! = 3314240134565353266999387579130131288000666286242049487118846032383059131291716864129885722968716753156177920000000000000000000

The best use of factorial is in Combinations and Permutations.

Example : Determine how to arrange letters without repeating?

There one way for 1 letter "a":
2 ways for two letters "ab": ab, ba.
There are 6 ways for 3 letters "abc": abc acb cab bac bca.
There are 24 ways for 1234 of the letters "abcd"

84 in French

84 in English

Factors of 84