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whats x! mean?????

 May 6, 2015

Best Answer 

 #1
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Means x factorial:

x! = x * (x-1) * (x-2)*....* 2 * 1

Eg:

6! = 6 x 5 x 4 x 3 x 2 x 1 = 720

3! = 3 x 2 x 1 = 6

Special cases and notes:

--> 0! = 1

--> Cant get factorials of a negative number or fractions, must be positive whole numbers

 May 6, 2015
 #1
avatar+250 
+5
Best Answer

Means x factorial:

x! = x * (x-1) * (x-2)*....* 2 * 1

Eg:

6! = 6 x 5 x 4 x 3 x 2 x 1 = 720

3! = 3 x 2 x 1 = 6

Special cases and notes:

--> 0! = 1

--> Cant get factorials of a negative number or fractions, must be positive whole numbers

Brodudedoodebrodude May 6, 2015

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