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 Post subject: Perfect square for every value of nPosted: Tue, 11 May 2010 23:15:49 UTC
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The expression is perfect square for every value of the positive integer number . Find .

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 Post subject: Posted: Wed, 12 May 2010 02:42:29 UTC
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1.

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I'm just an imagination of your figment...

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 Post subject: Re: Perfect square for every value of nPosted: Wed, 12 May 2010 15:26:40 UTC
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mathemagics wrote:
The expression is perfect square for every value of the positive integer number . Find .

Denis wrote:
1.

... or -1.

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 Post subject: Posted: Wed, 12 May 2010 21:11:28 UTC
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Joined: Sun, 23 Mar 2008 10:55:47 UTC
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It's obvious that the solutions are the numbers . Could you please give a full proof?

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 Post subject: Posted: Thu, 13 May 2010 18:06:36 UTC
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Location: NCTS/TPE, Taiwan
mathemagics wrote:
It's obvious that the solutions are the numbers . Could you please give a full proof?

Spoiler:
. Make a prime and you get ....

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