Equation with two variables

by MM » Fri Jul 25, 2008 3:37 pm

Prove that the equation [tex]x!=y^{2}[/tex] has no natural solutions.

by MM » Tue Aug 05, 2008 7:03 am

Solve the equation [tex]x!+1=y^{2}[/tex] in natural numbers.

by MM » Sat Aug 09, 2008 6:07 am

So there is a problem with the first equation. Fed_BG noticed it. So prove that there are no solutions for [tex]x\ge 2[/tex]

by **Blackcap145** » Mon Feb 23, 2015 3:29 am

Its to easy to solve it...!!! :lol:

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by **Guest** » Sat Feb 20, 2016 9:11 am

[tex]x!=y^2[/tex] has no natural solutions for [tex]x>1[/tex] follows simply from Bertrand's postulate
https://en.wikipedia.org/wiki/Proof_of_ ... _postulate
[tex]x!+1=y^2[/tex] is Brocard's problem,
https://en.wikipedia.org/wiki/Brocard's_problem

R. Baber.

by **leesajohnson** » Wed Mar 02, 2016 6:04 am

When x>1 then there is no natural solution for x!=y²