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Factorial

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Returns the factorial n! = Gamma[n+1] for integers and non-integers

Factorial[0] The factorial of 0 is 1 by definition.
Factorial[1] The factorial of 1 is 1.
Factorial[5] The factorial of 5 is 120 (5! = 5 × 4 × 3 × 2 × 1).
Factorial[10] The factorial of 10 is 3628800.
Factorial[3] The factorial of 3 is 6 (3! = 3 × 2 × 1).
Factorial[7] The factorial of 7 is 5040.
Factorial[12] The factorial of 12 is 479001600.
Factorial[2] The factorial of 2 is 2.
Factorial[4] The factorial of 4 is 24 (4! = 4 × 3 × 2 × 1).
Factorial[0] → 1Factorial[1] → 1Factorial[5] → 120Factorial[10] → 3628800Factorial[3] → 6Factorial[7] → 5040Factorial[12] → 479001600Factorial[2] → 2Factorial[4] → 24
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GammaBinomialPochhammerFactorial2FactorialPowerSubfactorialQFactorialStirlingS1BellBCatalanNumberFibonacciBernoulliB

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