Arrangement Calculator
Calculate permutations and combinations with or without repetition for your mathematical problems
Total number of distinct items
Number of items to arrange/select
Current Formula
P(n, r) = n! / (n - r)!
Permutations without repetition
Calculation Results
n!
n Factorial
-
(n-r)!
(n-r) Factorial
-
Total Arrangements
Enter values to calculate
Step-by-Step Solution
Possible Arrangements
Real-World Applications
Calculation History
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