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 Even Digit Perfect Square(s) (Posted on 2008-10-25)
Determine all possible 7-digit decimal (base 10) perfect square(s), each of whose digits is nonzero and even.

Note: While a solution is trivial with the aid of a computer program, show how to derive it without one.

 Submitted by K Sengupta No Rating Solution: (Hide) The required perfect squares are: 2862864 (16922), 8282884 (28782), and 8868484 (29782). For an explanation, refer to the solution submitted by Dej Mar in these locations: (i) http://perplexus.info/show.php?pid=6244&cid=41754. (ii) http://perplexus.info/show.php?pid=6244&cid=41756.

 Subject Author Date re(2): solution TRUE BUT WHY Dej Mar 2008-10-27 06:33:41 re: solution TRUE BUT WHY Ady TZIDON 2008-10-27 05:39:47 solution Dej Mar 2008-10-27 04:12:05 re(3): SLOANE A103705 (spoiler) Gamer 2008-10-26 22:37:03 re(2): SLOANE A103705 K Sengupta 2008-10-26 05:53:50 re(2): SLOANE A103705 (spoiler) Ady TZIDON 2008-10-26 04:30:48 re(2): SLOANE A103705 Ady TZIDON 2008-10-26 04:15:42 re: SLOANE A103705 (spoiler) Charlie 2008-10-25 17:05:34 re: SLOANE A103705 Gamer 2008-10-25 16:23:26 SLOANE A103705 Ady TZIDON 2008-10-25 13:48:23

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