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Question

What is the factorial of 20?


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Solution

Determine the factorial of 20.

n! represents the factorial n.

Such that, n!=n(n-1)(n-2)………(3)(2)(1)

Calculate the factorial of 20:

20!=20×19×18×17×16×15×14×……×3×2×1⇒20!=2432902008176640000

Hence, the required factorial is 20!=2432902008176640000.


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