N=(abcabd) is a 6-digit number with d-c=1.

FIND N, given it is an even square.

Rem: (abcabd) denotes chaining (= concatenation), not a product

(In reply to two computer solutions by Charlie)

I wrote an "even aquare" meaning a square of an integer,

NOT NECESSARILY EVEN INTEGER.

the solution I had in mind was 183184, .

since you added 715716.- i looked for additional answers,

disregarding parity of the candidate solutions (mod2=0 in your program).

There are indeed 2 odd answers :   328329  and 528529.

Nothing wrong with your interpretation ,  just wanted to let you know.

Posted by Ady TZIDON on 2013-01-18 21:01:49