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Off by one (Posted on 2013-01-18) Difficulty: 2 of 5
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

No Solution Yet Submitted by Ady TZIDON    
Rating: 4.0000 (1 votes)

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re(2): two computer solutions | Comment 4 of 7 |
(In reply to re: two computer solutions by Ady TZIDON)

Usually what you had in mind is referred to as a "perfect" square, rather than "even" square.

Curiously my first version of the program neglected to check for being even (multiple of 2) and found the other "solutions" and I realized it before posting, unlike the case of the spurious cancellation program where I posted it with the bug in place.


  Posted by Charlie on 2013-01-18 21:58:45
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