factorial

Summary

factorial is an integer-valued function^[1]. factorial draws 1,214 Wikipedia views per month (integer_valued_function category, ranking #1 of 7).^[2]

Key Facts

• factorial's image is recorded as Factorial 1-5.png^[3].
• factorial's instance of is recorded as integer-valued function^[4].
• factorial's instance of is recorded as integer sequence^[5].
• factorial's GND ID is recorded as 4153607-1^[6].
• factorial's Commons category is recorded as Factorial (function)^[7].
• factorial's Freebase ID is recorded as /m/02w2m^[8].
• factorial's OEIS ID is recorded as A000142^[9].
• factorial's topic's main category is recorded as Category:Factorial and binomial topics^[10].
• factorial's described at URL is recorded as https://www.openmath.org/cd/integer1.xhtml#factorial^[11].
• factorial's described at URL is recorded as https://www.w3.org/TR/MathML3/chapter4.html#contm.factorial^[12].
• factorial's OmegaWiki Defined Meaning is recorded as 405815^[13].
• factorial's Gran Enciclopèdia Catalana ID is recorded as 0182881^[14].
• factorial's described by source is recorded as Armenian Soviet Encyclopedia^[15].
• factorial's described by source is recorded as The Art of Computer Programming, Volume 1: Fundamental Algorithms, 3rd edition^[16].
• factorial's described by source is recorded as ISO 80000-2:2019 Quantities and units — Part 2: Mathematics^[17].
• factorial's Encyclopædia Britannica Online ID is recorded as topic/factorial^[18].
• factorial's Stack Exchange tag is recorded as https://stackoverflow.com/tags/factorial^[19].
• factorial's Stack Exchange tag is recorded as https://math.stackexchange.com/tags/factorial^[20].
• factorial's definition domain is recorded as set of non-negative integers^[21].
• factorial's codomain is recorded as set of non-negative integers^[22].
• factorial's partial function domain is recorded as set of integers^[23].
• factorial's different from is recorded as gamma function^[24].
• factorial's defining formula is recorded as n! = \begin{cases} \prod_{k = 1}^n k & n > 0 \ 1 & n = 0 \end{cases}^[25].
• factorial's studied by is recorded as combinatorics^[26].
• factorial's studied by is recorded as number theory^[27].

Why It Matters

factorial draws 1,214 Wikipedia views per month (integer_valued_function category, ranking #1 of 7).^[2] factorial has Wikipedia articles in 30 language editions, a strong signal of global cultural recognition.^[28] factorial is known by 40 alternative names across languages and contexts.^[29]