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Which of the following recursive formula can be used to find the factorial of a number?

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Which of the following recursive formula can be used to find the factorial of a number?

(a) fact(n) = n * fact(n)

(b) fact(n) = n * fact(n+1)

(c) fact(n) = n * fact(n-1)

(d) fact(n) = n * fact(1)

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Correct answer is (c) fact(n) = n * fact(n-1)

For explanation: fact(n) = n * fact(n – 1) can be used to find the factorial of a number.

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