Factorial of 2 (2!)
RESULT: 2
The factorial of 2, written as 2!, is the product of all positive integers less than or equal to 2.
What Is the Formula to Calculate 2 Factorial?
The formula for calculating 2 factorial (2!) is:
2! = 2 × 1 = 2
How Many Digits in 2 Factorial?
The number 2! has 1 digits.
Factorial Table From 1! to 2!
| n | n! |
|---|---|
| 1 | 1 |
| 2 | 2 |
Frequently Asked Questions
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What is 2!?
It's the product of all positive integers from 1 to 2. Answer: 2.
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Is factorial defined for negative numbers?
No. Factorials are only defined for non-negative integers (0 and up).
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What is 0!?
By definition, the factorial of 0 is 1.