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Talk:First perfect square in base n with n unique digits: Difference between revisions

→‎Trailing zero: Forgot to add that this only applies for bases > 2.
(Added section about a minor optimization.)
(→‎Trailing zero: Forgot to add that this only applies for bases > 2.)
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==Trailing zero==
A minor optimization has occurred to me namely that N cannot end with '0', whateverfor theany base greater than 2, because if it did, then N² would end with '00'.
 
However, this is impossible because:
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