What is 3 factorial ?

To find 3 factorial, or 3!, simply use the formula that multiplies the number 3 by all positive whole numbers less than it.

Let's look at how to calculate the Factorial of Three :

  3! is exactly : 6

  Factorial of 3 can be calculated as:
3! = 3 x 2 x 1

  The number of trailing zeros in 3! is 0

  The number of digits in 3 factorial is 1.

• 0 Factorial
• 1 Factorial
• 2 Factorial
• Factorial of 4
• Factorial of 5
• Factorial of 6
• Factorial of 7

A factorial is displayed by an integer and an exclamation symbol. In arithmetic, factorial is a multiplication treatment of natural numbers .

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

Symbolically, it is listed as "!".

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

To find the factorial of any given number, alternate the value for n in the given rule :

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

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

We can also measure 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 :
3! Factorial = 3 x 2 x 1 = 3 × 2! = 6

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"

1) Can we have factorials for negative numbers ?
  Negative integer factorials are undefined

2) What Is 0!
 Zero factorial or Factorial of 0 is simple, and its value is corresponding to 1. So, 0! = 1.

3 in French

3 in English

Factors of 3