Calculator for several combinatorics functions:
Factorial | Subfactorial | Binomial Coefficient | Central Binomial Coefficient | Repetition | Catalan Number | Lah Number | German: Kombinatorik Funktionen

Calculate Factorials

n! = 1 * 2 * 3 * ... * n-1 * n
Enter a positive integer smaller as 171 and press Calculate, to determine the factorial.
n: !





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