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Factorial Notation
If is a positive integer, then the factorial of , written in factorial notation as , is defined as the product of all positive integers less than or equal to : . By definition, the value of is .

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Intermediate Algebra @ OpenStax
Algebra
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Factorial Notation
Infinite Sequence
Finite Sequence
General Term of a Sequence
Arithmetic Sequence
Geometric Sequence
Annuity
Partial Sum
Summation Notation
Factorial Notation
As an inventory analyst, you record the total number of items restocked at the end of each week. You list the totals so that the first week corresponds to position 1, the second week to position 2, and so on. In algebraic terms, this ordered list of values—which can be thought of as a mathematical relationship whose domain is restricted to the counting numbers ()—is formally defined as a:
In a workplace productivity report, a supervisor lists the number of units produced in each consecutive hour of a shift. Algebraically, this ordered list represents a sequence. True or False: An algebraic sequence is formally defined as a function whose domain is restricted to the set of counting numbers ().
A customer service lead tracks the number of calls answered during each hour of an 8-hour shift. Match each algebraic component of this data record with its practical description.
Identifying Components of Sequential Data
A supervisor at a manufacturing plant maintains a production log that lists the number of units completed during each consecutive hour of a shift. This ordered list of data (e.g., ) represents an algebraic sequence. In this context, each individual numerical value in the list is formally referred to as a(n) ____.
Defining Sequential Logistics Logs
In your role as a logistics coordinator, you are tracking the total number of shipments processed during each consecutive hour of a morning shift. You record the following data:
- Hour 3 (Position 3): 42 shipments
- Hour 1 (Position 1): 35 shipments
- Hour 4 (Position 4): 50 shipments
- Hour 2 (Position 2): 38 shipments
Because an algebraic sequence is an ordered list of terms whose domain is restricted to the counting numbers (), arrange these shipment counts in the correct order to represent the sequence starting from the first term (corresponding to domain value ) to the fourth term (corresponding to domain value ).
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In many professional fields, such as logistics and project management, factorial notation is used to calculate the number of possible ways to arrange tasks or items in a sequence. To ensure you understand the fundamentals of this notation, match each factorial term or definition below with its corresponding mathematical value or expansion.
In professional organizational planning, factorial notation (written as
$n!$) is used to calculate the number of possible sequences for a set of tasks. According to the mathematical definition of this notation, what is the value of${}0!$?Defining Factorial Notation in Logistics
In project management, the number of ways to arrange a sequence of 4 distinct tasks is represented by the expression . Arrange the following integers in the correct descending order to represent the product expansion of based on the definition of factorial notation.
In fields like industrial engineering and logistics, determining the number of possible ways to arrange a set of distinct tasks involves factorial notation. By mathematical definition, if is a positive integer, the factorial of (written as ) represents the ____ of all positive integers less than or equal to .
As a logistics coordinator calculating the total number of ways to arrange delivery routes, you use factorial notation to find the possible sequences. By mathematical definition, the factorial of a positive integer , written as , is calculated as the sum of all positive integers less than or equal to .
Explaining Factorial Notation to a Logistics Intern