Factorial Calculator Until 10,000
Here you can find answers to questions like: How many digits are there in 13 factorial? What is the factorial of 13? What is the last digits of factorial of 13? How many trailing zeros in 13 factorial? How many digits are there in 13 factorial? Use the factorial calculator above to find the factorial of any natural between 0 and 10,000.
What is factorial?
Definition of factorial
The factorial is a quantity defined for any integer n greater than or equal to 0.
The factorial is the product of all integers less than or equal to n but greater than or equal to 1. The factorial value of 0 is by definition equal to 1. For negative integers, factorials are not defined. The factorial can be seen as the result of multiplying a sequence of descending natural numbers (such as 3 × 2 × 1).
The factorial symbol is the exclamation mark !.
The factorial formula
If n is a natural number greater than or equal to 1, then
n! = n x (n - 1) x (n - 2) x (n - 3) ... 3 x 2 x 1
If n = 0, then n! = 1, by convention.
Example: 6! = 6 x 5 x 4 x 3 x 2 x 1 = 720
Shortcut to find trailing zeros in a factorial
Trailing zeros are a sequence of zeros in the decimal representation of a number, after which no other digits follow. This video shows how to find the trailing zeros of a factorial easily.
Table of factorials until 30
Factorial Calculator
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Sample Factorials Calculations.
- Factorial of 43
- Factorial of 210
- Factorial of 810
- Factorial of 52
- Factorial of 85
- Factorial of 77
- Factorial of 60
- Factorial of 105
- Factorial of 120
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