factorial notation

Front

What is factorial notation?

Back

Factorial notation, denoted as n!, represents the product of all positive integers from 1 to n.

Front

What is the value of 0! (zero factorial)?

Back

0! = 1 by definition.

Front

What is the factorial of 5?

Back

5! = 5 × 4 × 3 × 2 × 1 = 120.

Front

Can a factorial be defined for a negative number?

Back

NO, factorials are only defined for non-negative integers.

Front

What is the factorial of 1?

Back

1! = 1.

Front

What is the relationship between n! and (n-1)!?

Back

n! = n × (n-1)!.

Front

What is the factorial of 3?

Back

3! = 3 × 2 × 1 = 6.

Front

If n = 4, what is the value of n!?

Back

4! = 4 × 3 × 2 × 1 = 24.

Front

What is the factorial of 2?

Back

2! = 2 × 1 = 2.

Front

How do you express the factorial of a number mathematically?

Back

n! = n × (n-1) × (n-2) × ... × 1.