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.
Pro Tip
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).
Vidste du?
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.
Har du et spørgsmål om denne beregner? Få et detaljeret svar.
Variabelbeskrivelse
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
Læs mere →Få ugentlige matematiktips
Slut dig til 12.000+ abonnenter, der får lommeregnertips hver uge.