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Limit of the function factorial(x)^(-1/x)

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       -1 
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        x 
 lim x!   
x->oo     
$$\lim_{x \to \infty} x!^{- \frac{1}{x}}$$
Limit(factorial(x)^(-1/x), x, oo, dir='-')
Lopital's rule
There is no sense to apply Lopital's rule to this function since there is no indeterminateness of 0/0 or oo/oo type
Rapid solution [src]
0
$$0$$
Other limits x→0, -oo, +oo, 1
$$\lim_{x \to \infty} x!^{- \frac{1}{x}} = 0$$
$$\lim_{x \to 0^-} x!^{- \frac{1}{x}} = e^{\gamma}$$
More at x→0 from the left
$$\lim_{x \to 0^+} x!^{- \frac{1}{x}} = e^{\gamma}$$
More at x→0 from the right
$$\lim_{x \to 1^-} x!^{- \frac{1}{x}} = 1$$
More at x→1 from the left
$$\lim_{x \to 1^+} x!^{- \frac{1}{x}} = 1$$
More at x→1 from the right
$$\lim_{x \to -\infty} x!^{- \frac{1}{x}} = 1$$
More at x→-oo