Calculate factorials for any non-negative integer with MaiCalcs. Get step-by-step calculations and learn about factorial properties and applications.
Note: Factorials grow very quickly. Numbers above 170 exceed JavaScript's number precision limits.
• n! = n × (n-1) × (n-2) × ... × 2 × 1
• 0! = 1 (by definition)
• Symbol: n! (read as "n factorial")
• Growth: Extremely rapid increase
• 0! = 1, 1! = 1, 2! = 2, 3! = 6
• 4! = 24, 5! = 120, 10! = 3,628,800
Enter a number to calculate its factorial