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Excel PERMUT Function

Excel PERMUT function
Summary 

The Excel PERMUT function returns the number of permutations (combinations where order is significant) of a given number of items. To use PERMUT, specify the total number of items and "number chosen", which represents the number of items in each combination.

Purpose 
Get total number of permutations
Return value 
Total possible permutations as an integer
Syntax 
=PERMUT (number, number_chosen)
Arguments 
  • number - The total number of items.
  • number_chosen - The number of items in each combination.
Usage notes 
  • A permutation is a group of items in which order/sequence matters.
  • If order is not significant, use the COMBIN function.
  • Arguments that contain decimal values are truncated to integers.
  • PERMUT returns a #VALUE! error value if either argument is not numeric.
  • PERMUT returns #NUM! if number is less than number chosen.
Related functions 
Excel FACT function
Excel FACT Function

The Excel FACT function returns the factorial of a given number. For example, =FACT(3) returns 6, equivalent to 3 x 2 x 1.

Excel COMBIN function
Excel COMBIN Function

The Excel Combin function returns the number of combinations (in any order) of a given number of items. To use COMBIN, specify the total number of items and "number chosen" which represents the number of items in each combination.

Good links 
Microsoft PERMUT function documentation

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