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Question

Which is a factorial?

A
5!
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B
5?
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C
5
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D
None of the above
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Solution

The correct option is A 5!
Factorial:–––––––––––
The factorial of a number is the product of all the natural numbers from 1 upto the number itself. Symbolically, factorial can be represented as "!". So, n factorial is the product of the first n natural numbers and is represented as n!


For example, 3 factorial, that is, 3! can be written as: 3!=3×2×1=6.

Hence, out of all the given options, only option (a.), i.e, 5! denotes a factorial.

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