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Four Digits (Posted on 2013-11-05) Difficulty: 2 of 5
You have a number where any digit appears at most twice. The sum of all neighboring four digits in this number is a square number.

What is the maximum possible value for this number?

Example: 205290 is such a number because no digit appears more than twice and 2+0+5+2, 0+5+2+9, and 5+2+9+0 are square numbers.

No Solution Yet Submitted by Danish Ahmed Khan    
Rating: 4.0000 (1 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
re(2): computer solution --- KUDOSJer2013-11-05 15:47:41
Some Thoughtsre: computer solution --- KUDOSAdy TZIDON2013-11-05 14:55:08
Solutioncomputer solutionCharlie2013-11-05 13:17:32
Solutionpossible solution...spoilerAdy TZIDON2013-11-05 13:07:33
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