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  • Why is 0! = 1 ?

    Da Vinci

    Member

    Updated: Oct 26, 2024
    Views: 1.5K
    Why is 0! = 1 ?
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  • Kaustubh Katdare

    Administrator • Aug 25, 2015

    Da Vinci
    Why is 0! = 1 ?
    Short answer: It's been 'defined' that way to make sense, and fit into general scheme of things.
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  • Anoop Kumar

    Member • Aug 26, 2015

    Factorial by definition is how many number of ways you can arrange n, Natural numbers of things.
    2! = {1,2}, {2,1} -> 2
    1! = {1} -> 1
    0! = {} -> 1

    Here is several explanation in this video
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  • Da Vinci

    Member • Aug 26, 2015

    Thanks for the reply 😀 ...
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