Factorial
noun
The factorial of a number is a product of all integers from 1 to that number. It's often used in calculations of probability.
The factorial of 5 is 120 because 5*4*3*2*1 equals 120.
Often appears as...
- factorial of a number
- calculate the factorial
Usage tips
Technical
adjective
Relating to factors or factorials.
In a factorial experiment, all possible combinations of factor levels are tested.
Often appears as...
- factorial experiment
- factorial design
Usage tips
Technical
noun
The factorial of a number is a product of all integers from 1 to that number. It's often used in calculations of probability.
The factorial of 5 is 120 because 5*4*3*2*1 equals 120.
Often appears as...
- factorial of a number
- calculate the factorial
Usage tips
Technical
adjective
Relating to factors or factorials.
In a factorial experiment, all possible combinations of factor levels are tested.
Often appears as...
- factorial experiment
- factorial design
Usage tips
Technical
Definition 1 of 2
Pro Tip 1/3Math Specific
Used mostly in math, particularly in probability and combinatorics.
To solve this problem, you'll need to find the factorial of 7.
Pro Tip 2/3Symbol Representation
The exclamation mark (!) denotes factorial, like in 5! for 5 factorial.
Can you calculate 8! for me?
Pro Tip 3/3Non-Negative Integers
Factorials are only defined for non-negative integers, and 0! is 1.
Remember that the factorial of a negative number doesn't exist.
Pro Tip 1/3Math Specific
Used mostly in math, particularly in probability and combinatorics.
To solve this problem, you'll need to find the factorial of 7.
Pro Tip 2/3Symbol Representation
The exclamation mark (!) denotes factorial, like in 5! for 5 factorial.
Can you calculate 8! for me?
Pro Tip 3/3Non-Negative Integers
Factorials are only defined for non-negative integers, and 0! is 1.
Remember that the factorial of a negative number doesn't exist.
Pro Tip 1/3Math Specific
Used mostly in math, particularly in probability and combinatorics.
To solve this problem, you'll need to find the factorial of 7.
Pro Tip 2/3Symbol Representation
The exclamation mark (!) denotes factorial, like in 5! for 5 factorial.
Can you calculate 8! for me?
Pro Tip 3/3Non-Negative Integers
Factorials are only defined for non-negative integers, and 0! is 1.
Remember that the factorial of a negative number doesn't exist.
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Video examples
Marcus du Sautoy:...
what you have to do is to answer the question I asked you at the beginning. How many symmetries does a Rubik's Cube have? Okay, I'm going to sort you out. Rather than you all shouting out, I want you to count how many digits there are in that number. Okay? If you've got it as a factorial, you've got to expand the factorials.
Video examples
Putting a Species on the...
factorial which is a really big number of eyeballs eye pairs of eyes looking at the Rhino developing a 3d scan of him and because we were doing it from one side we'd take an image of him from one side and then have the watermelon moved to the other side so we'd have him turn around and piece by piece we built up
Video examples
The Chasm PIPE Think Like A...
If there are less than 2 odd characters, the stack can be made into a palindrome. This approach is much, much faster than the naïve solution. Instead of factorial time, it takes linear time. That’s where the time increases
Video examples
Marcus du Sautoy:...
what you have to do is to answer the question I asked you at the beginning. How many symmetries does a Rubik's Cube have? Okay, I'm going to sort you out. Rather than you all shouting out, I want you to count how many digits there are in that number. Okay? If you've got it as a factorial, you've got to expand the factorials.
Video examples
Putting a Species on the...
factorial which is a really big number of eyeballs eye pairs of eyes looking at the Rhino developing a 3d scan of him and because we were doing it from one side we'd take an image of him from one side and then have the watermelon moved to the other side so we'd have him turn around and piece by piece we built up
Video examples
The Chasm PIPE Think Like A...
If there are less than 2 odd characters, the stack can be made into a palindrome. This approach is much, much faster than the naïve solution. Instead of factorial time, it takes linear time. That’s where the time increases
Example 1 of 3
Quote examples
Stephon Marbury
American Athlete
I'm a max player. Don't get mad at me because I'm telling you what's real. One plus one is two, all day long, and it's never gonna change. And that's factorial.
Quote examples
Stephon Marbury
American Athlete
I'm a max player. Don't get mad at me because I'm telling you what's real. One plus one is two, all day long, and it's never gonna change. And that's factorial.
Example 1 of 1
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