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How far can you go? (Posted on 2015-05-12) Difficulty: 2 of 5
16 is the smallest 2-digit square whose digits are non-decreasing.
144 is the smallest 3-digit square whose digits are non-decreasing.
1156 is the smallest 4-digit square whose digits are non-decreasing.

GO ON!

No Solution Yet Submitted by Ady TZIDON    
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Comments: ( Back to comment list | You must be logged in to post comments.)
re(3): Go on, indeed. | Comment 5 of 6 |
(In reply to re(2): Go on, indeed. by Jer)

Jer,

You may not remember this:

http://perplexus.info/show.php?pid=9673&cid=54668


  Posted by broll on 2015-05-13 05:02:09
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