Re: SMSU Problem Corner (oops!)
From: David W. Cantrell (DWCantrell_at_sigmaxi.org)
Date: 09/23/04
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Date: 23 Sep 2004 21:26:31 GMT
mjc <mjcohen@acm.org> wrote:
> Les Reid wrote:
> > The original Challenge problem posted had a number of grievous errors.
> > It has been withdrawn and a new, similar (and one hopes, correct)
> > puzzle has been posted at
> >
> > http://math.smsu.edu/~les/Challenge.html
> >
> > Sorry about that!
> >
> Unless I made a mistake (p>.5), there is no solution to the problem.
>
> The only 4-digit squares with the same first and last digits
> and 5-digits triangular numbers with the same first and last digits
> both having the same second-highest digit seem to be as shown here:
>
> VEIR is a perfect square
I fear that you misspelled VIER.
I found a solution and, unless I overlooked something, it's unique.
David
> SECHS is triangular
> NEUN is a perfect square
> What is DREI?
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