Enigma 1489: Even digit squares
19 November 2012
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From New Scientist #2651, 12th April 2008
Harry, Tom and I were looking to find 5-digit perfect squares that used only even digits. 0 counted as an even digit but could not be used as a leading digit or a final digit.
We each found a different set of three such squares, and in each of our sets each of the five even digits was used a different number of times.
My set had two squares in common with Harry’s set and two squares in common with Tom’s set.
What were the three squares in my set?