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# Factorials

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How to compute factorials?

Jan 15, 2019

#1
+57
+2

Let's say that you want to compute n!, also known as n factorial. This expression would be equal to 1 * 2 * 3 * 4 * .......... * (n-1) * n.

For example, if you wanted to compute 4!, then you would have 1*2*3*4 = 24.

0! is regarded as an empty product, so it is 1.

Another way of representing a factorial is \(\prod_{i=1}^{n} (i)\).

Factorials are often used in complemetary counting, probability, and statistics as such.

-24

Jan 15, 2019
edited by TwentyFour  Jan 15, 2019

#1
+57
+2

Let's say that you want to compute n!, also known as n factorial. This expression would be equal to 1 * 2 * 3 * 4 * .......... * (n-1) * n.

For example, if you wanted to compute 4!, then you would have 1*2*3*4 = 24.

0! is regarded as an empty product, so it is 1.

Another way of representing a factorial is \(\prod_{i=1}^{n} (i)\).

Factorials are often used in complemetary counting, probability, and statistics as such.

-24

TwentyFour Jan 15, 2019
edited by TwentyFour  Jan 15, 2019