What is 4 factorial ?

To find 4 factorial, or 4!, simply use the formula that multiplies the number 4 by all positive whole numbers less than it.

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

  4! is exactly : 24

  Factorial of 4 can be calculated as:
4! = 4 x 3 x 2 x 1

  The number of trailing zeros in 4! is 0

  The number of digits in 4 factorial is 2.

• 0 Factorial
• 1 Factorial
• 2 Factorial
• 3 Factorial
• Factorial of 5
• Factorial of 6
• Factorial of 7
• Factorial of 8

A factorial is represented by an integer and an exclamation tag. In arithmetic, factorial is a multiplication operation of natural numbers .

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

Symbolically, it is listed as "!".

The function is used, among other things, to get the "n" way pieces can be arranged .

To find the factorial of any given number, change the exact value for n in the given solution :

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

The expansion of the formula shows the numbers to be multiplied together with each other to have the factorial of the number.

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

So the rule is : n! = n × (n−1)!

Example :
4! Factorial = 4 x 3 x 2 x 1 = 4 × 3! = 24

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"

4 in French

4 in English

Factors of 4