[seqfan] Re: {5, 235, 72335}^2 = {25, 55225, 5232352225}

Max Alekseyev maxale at gmail.com
Tue Dec 16 19:08:24 CET 2008


On Tue, Dec 16, 2008 at 8:49 AM,  <franktaw at netscape.net> wrote:
> You could try looking at the leading digits of the square, instead of
> the trailing digits.
> It's a little trickier, because there isn't the simple relationship
> between the number
> of digits of the number and the number of digits determined in the
> square, but I
> think it might be fruitful.

I don't think so. According to my calculations, the number of valid
prefixes grows much faster than the number of valid suffixes of the
same length as the length grows.

Regards,
Max




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