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## What is a circular permutation?

A circular permutation refers to the number of ways to place a specific number of distinct items along a fixed circle.

In mathematics it is calculated by this formula:

P(n) = (n - 1)!

Where:

n = number of distinct items to be arranged

n > 0

(n - 1)! is the circular permutation factorial number. Please note that this type of permutation is not equal to the standard factorial (n!).

12 Aug, 2015