Factorials Practice

Front

What is a factorial?

Back

A factorial, denoted as n!, is the product of all positive integers from 1 to n. For example, 5! = 5 × 4 × 3 × 2 × 1 = 120.

Front

What is the value of 4!?

Back

24

Front

What is the value of 2! + 2!?

Back

4 (since 2! = 2, thus 2! + 2! = 2 + 2 = 4).

Front

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

Back

n! = n × (n-1)! (This means that the factorial of n is n times the factorial of (n-1)).

Front

What is the value of 10! ÷ 9!?

Back

10 (since 10! = 10 × 9!).

Front

What is the value of 0!?

Back

1 (by definition, the factorial of zero is one).

Front

How do you calculate 3!?

Back

3! = 3 × 2 × 1 = 6.

Front

If n = 5, what is the value of n!?

Back

5! = 120.

Front

What is the factorial of a negative number?

Back

Factorials are not defined for negative integers.

Front

What is the value of 6! ÷ 6!?

Back

1 (since any number divided by itself is 1).