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What is the factorial of 0?
99. What is the factorial of 0?
- 0
- 1
- Undefined
- Infinity
Answer
The correct answer is: B) 1
Explanation
The factorial of zero, represented as 0! is 1. The product of all positive integers from 1 to "n" is the factorial of a non-negative integer "n." 5! (read as "5 factorial"), for example, is calculated as 5 * 4 * 3 * 2 * 1 = 120.