Factorial Calculator
n! = 1×2×3×...×n
Detailed Guide Coming Soon
We're working on a comprehensive educational guide for the Factorial Calculator n! in your language. The content below is shown in English.
Dica Pro
Stirling's approximation: n! ≈ √(2πn) × (n/e)ⁿ. For large n, this is very accurate. For n=10: exact = 3,628,800; Stirling gives 3,598,696 (0.83% error).
Você sabia?
The number of ways to shuffle a standard 52-card deck is 52! ≈ 8 × 10⁶⁷. This number is so large that every time you shuffle a deck, you are almost certainly creating an ordering that has never existed before in human history.
Tem uma pergunta sobre esta calculadora? Obtenha uma resposta detalhada.
Legenda de variáveis
Definition
Product of all positive integers from 1 to n.
Recursive definition
Each factorial is n times the previous.
Stirling's approximation
Accurate estimate for large n.
Read the full guide on how to use this calculator effectively
Ler mais →Receba dicas semanais de matemática
Junte-se aos assinantes do 12.000 + que recebem dicas de calculadora todas as semanas.