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 November 5th, 2019, 01:06 AM #1 Senior Member   Joined: Dec 2015 From: Earth Posts: 823 Thanks: 113 Math Focus: Elementary Math Equation with factorial Solve the equation using inverse gamma-function . $\displaystyle n!=6$. November 5th, 2019, 01:26 PM   #2
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Quote:
 Originally Posted by idontknow Solve the equation using inverse gamma-function . $\displaystyle n!=6$.
I guess I have to ask: Do you know what the inverse gamma function is?

(Frankly I'd just start guessing integers.)

-Dan November 5th, 2019, 05:02 PM #3 Senior Member   Joined: Sep 2016 From: USA Posts: 683 Thanks: 456 Math Focus: Dynamical systems, analytic function theory, numerics $n =3$ Thanks from idontknow November 6th, 2019, 02:19 AM #4 Senior Member   Joined: Dec 2015 From: Earth Posts: 823 Thanks: 113 Math Focus: Elementary Math $\displaystyle 1<\sqrt{6 n}(n/e)^n \approx 2e$. $\displaystyle n>e$ or $\displaystyle n\approx 3$. November 6th, 2019, 04:28 AM   #5
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Quote:
 Originally Posted by idontknow $\displaystyle 1<\sqrt{6 n}(n/e)^n \approx 2e$. $\displaystyle n>e$ or $\displaystyle n\approx 3$.
or n exactly equal to 3... Tags equation, factorial Thread Tools Show Printable Version Email this Page Display Modes Linear Mode Switch to Hybrid Mode Switch to Threaded Mode Similar Threads Thread Thread Starter Forum Replies Last Post idontknow Real Analysis 1 March 15th, 2019 09:28 AM mared Algebra 11 October 2nd, 2014 02:46 AM Dacu Number Theory 5 May 25th, 2013 06:54 AM momo Number Theory 8 May 8th, 2009 01:21 PM Dacu Algebra 2 December 31st, 1969 04:00 PM

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