perplexus.info :: Numbers : Five Squares

Five Squares (Posted on 2007-04-18)

This array of base 10 digits, read from left to right and top-down, contains 4 square numbers. The fifth numeral is as close as possible to another square.


     a  b  c
     d  e  f

Identify the array.

See The Solution Submitted by brianjn

Rating: 3.7500 (4 votes)

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Multiple solutions

| Comment 4 of 7 |

36x

841

where x = 2, 5 or 7.

The four squares are: 36, 64, 841, and 4. Plus, the fifth numeral (a square itself) is as close as possible to another square.

This seemed too easy. Have I interpreted the rules incorrectly?

Posted by Guest on 2007-04-19 15:56:29

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