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  2. Factorial - Wikipedia

    en.wikipedia.org/wiki/Factorial

    The factorial of also equals the product of with the next smaller factorial: ! = () = ()! For example, ! =! = = The value of 0! is 1, according to the convention for an empty product . [ 1 ]

  3. Googol - Wikipedia

    en.wikipedia.org/wiki/Googol

    A googol is the large number 10 100 or ten to the power of one ... (factorial of 70). Using an integral, binary numeral system, one would need 333 bits ...

  4. Factorial number system - Wikipedia

    en.wikipedia.org/wiki/Factorial_number_system

    The factorial number system is a mixed radix numeral system: the i-th digit from the right has base i, which means that the digit must be strictly less than i, and that (taking into account the bases of the less significant digits) its value is to be multiplied by (i − 1)!

  5. Derangement - Wikipedia

    en.wikipedia.org/wiki/Derangement

    denotes the factorial of n and e ≈ 2.718281828... is Euler's number. [3] The problem of counting derangements was first considered by Pierre Raymond de Montmort in his Essay d'analyse sur les jeux de hazard [4] in 1708; he solved it in 1713, as did Nicholas Bernoulli at about the same time.

  6. Orders of magnitude (numbers) - Wikipedia

    en.wikipedia.org/wiki/Orders_of_magnitude_(numbers)

    (100; hundred) ISO: hecto ... 69! (roughly 1.7112245 × 10 98), is the largest factorial value that can be represented on a calculator with two digits for powers of ...

  7. Falling and rising factorials - Wikipedia

    en.wikipedia.org/wiki/Falling_and_rising_factorials

    The value of each is taken to be 1 (an empty product) when =. These symbols are collectively called factorial powers. [2] The Pochhammer symbol, introduced by Leo August Pochhammer, is the notation (), where n is a non-negative integer.

  8. The Real Value of $100 in Every State - AOL

    www.aol.com/real-value-100-every-state-220000627...

    1. Mississippi. Real value of $100: $116.69 Median household income: $45,792 Annual cost of living expenditures: $26,535 More From GOBankingRates. From New York to California: A Spotlight on ...

  9. Double factorial - Wikipedia

    en.wikipedia.org/wiki/Double_factorial

    These are counted by the double factorial 15 = (6 − 1)‼. In mathematics, the double factorial of a number n, denoted by n‼, is the product of all the positive integers up to n that have the same parity (odd or even) as n. [1] That is,