Search results
Results from the WOW.Com Content Network
In mathematical analysis, factorials are used in power series for the exponential function and other functions, and they also have applications in algebra, number theory, probability theory, and computer science. Much of the mathematics of the factorial function was developed beginning in the late 18th and early 19th centuries.
In algebra and number theory, Wilson's theorem states that a natural number n > 1 is a prime number if and only if the product of all the positive integers less than n is one less than a multiple of n.
The factorial number system is sometimes defined with the 0! place omitted because it is always zero (sequence A007623 in the OEIS). In this article, a factorial number representation will be flagged by a subscript "!". In addition, some examples will have digits delimited by a colon. For example, 3:4:1:0:1:0! stands for
A has a divisor theory in which every divisor is principal. A is a Krull domain in which every divisorial ideal is principal (in fact, this is the definition of UFD in Bourbaki.) A is a Krull domain and every prime ideal of height 1 is principal. [7] In practice, (2) and (3) are the most useful conditions to check.
In number theory, a factorion in a given number base is a natural number that equals the sum of the factorials of its digits. [1] [2] [3] The name factorion was coined by the author Clifford A. Pickover. [4]
De Moivre gave an approximate rational-number expression for the natural logarithm of the constant. Stirling's contribution consisted of showing that the constant is precisely 2 π {\displaystyle {\sqrt {2\pi }}} .
Its factorial number representation can be written as ()!. In the same way, a profinite integer can be uniquely represented in the factorial number system as an infinite string ( ⋯ c 3 c 2 c 1 ) ! {\displaystyle (\cdots c_{3}c_{2}c_{1})_{!}} , where each c i {\displaystyle c_{i}} is an integer satisfying 0 ≤ c i ≤ i {\displaystyle 0\leq c ...
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more