Factorial Calculator
n! for large n using BigInt — exact value plus scientific.
n
n!
Notes
Definition
n! = n × (n−1) × ... × 2 × 1
0!
= 1 (by convention)
Stirling
n! ≈ √(2πn) · (n/e)^n
Last updated:
n! for large n using BigInt — exact value plus scientific.
Last updated: