Understanding Factorials - High School Math
Card 0 of 3
Question
Find the value of:
Find the value of:
Answer
The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So, 
can also be written as:
To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:
The factorial sign (!) just tells us to multiply that number by every integer that leads up to it. So,
To make this easier for ourselves, we can cancel out the numbers that appear on both the top and bottom:
Compare your answer with the correct one above
Question
What is the value of 
?
What is the value of
Answer
! is the symbol for factorial, which means the product of the whole numbers less than the given number.
Thus, 
.
! is the symbol for factorial, which means the product of the whole numbers less than the given number.
Thus,
Compare your answer with the correct one above
Question
What is the value of 
?
What is the value of
Answer
By definition, 
.
By definition,
Compare your answer with the correct one above
Tap the card to reveal the answer