Factorial

What is the definition of factorial?

• The factorial of a non-negative integer n, denoted as n!, is the product of all positive integers less than or equal to n.

• The factorial of a number is the sum of all integers up to that number.

• The factorial of a non-negative integer n is the difference between n and the next integer.

• The factorial of a number is the square of that number.

Calculate: 8! / 6!

• 48

• 56

• 64

• 72

Calculate 6!

• 720

• 600

• 730

• 750

What is the value of 1! ?

• 0

• 1

• 2

• 1! is undefined

What is 0! equal to?

• 0

• 1

• -1

• undefined

What does the notation n! represent?

• The sum of the first n natural numbers.

• The product of all positive integers up to n.

• The square of n.

• The factorial of n.

Evaluate: 3! + 4!

• 24

• 30

• 20

• 18

Calculate: 7! - 5!

• 4920

• 5040

• 4800

• 5000

Evaluate: 2! + 3!

• 6

• 7

• 8

• 9

What is the factorial of a negative number?

• The factorial is defined for negative integers.

• The factorial is not defined for negative integers.

• The factorial of a negative number is zero.

• The factorial of a negative number is a positive integer.