What is 28 factorial ?

To find 28 factorial, or 28!, simply use the formula that multiplies the number 28 by all positive whole numbers less than it.

Let's look at how to calculate the Factorial of Twenty-eight :

  28! is exactly : 304888344611713860501504000000

  Factorial of 28 can be calculated as:
28! = 28 x 27 x 26 x 25 x ... x 3 x 2 x 1

  The number of trailing zeros in 28! is 6

  The number of digits in 28 factorial is 30.

• 24 Factorial
• 25 Factorial
• 26 Factorial
• 27 Factorial
• Factorial of 29
• Factorial of 30
• Factorial of 31
• Factorial of 32

A factorial is represented by an integer and an exclamation symbol. 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 symbolized as "!".

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

To find the factorial of any given number, replace 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 the numbers to be replicated to each other to obtain the factorial of the number.

We can also work out a factorial from the prior 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 :
28! Factorial = 28 x 27 x 26 x 25 x ... x 3 x 2 x 1 = 28 × 27! = 304888344611713860501504000000

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"

28 in French

28 in English

Factors of 28