femfaktoriale
Femfaktoriale refers to the factorial of five, commonly written as 5!. In mathematical terms, femfaktoriale is the product of all positive integers up to five: 5! = 5 × 4 × 3 × 2 × 1 = 120. The term is often used in Norwegian discussions of factorials and combinatorics.
In general, the factorial function n! is defined for non-negative integers n by n! = n × (n−1)!,
Factorials have wide applications in counting and probability. They count the number of permutations of n distinct
Extensions and limitations: the standard factorial is defined only for non-negative integers. Negative integers do not
Historically, the factorial notation and concept were popularized in the early 19th century, with the exclamation