Answer :
The factorial of the expression was calculated as 900, without a calculator.
What is a factorial?
A factorial is the product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point. It is the multiplication of all whole numbers from our chosen number down to 1.
For the given situation,
The expression is 900!/899!
The factorial can be found by expanding this expression as
⇒ [tex]\frac{900!}{899!} =\frac{899!(900)}{899!}[/tex]
⇒ [tex]900[/tex]
Hence we can conclude that the factorial of the expression was calculated as 900, without a calculator.
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