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444...444 (Posted on 2019-08-02) Difficulty: 3 of 5
Find the smallest perfect square whose decimal representation begins and ends with three 4's.

No Solution Yet Submitted by Danish Ahmed Khan    
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re: solution | Comment 3 of 5 |
(In reply to solution by Daniel)

Apparently there can be more than one modular square root. See my computer solution for three other values mod 1000.

  Posted by Charlie on 2019-08-02 13:37:55
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