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Odd digited square (Posted on 2019-06-02) Difficulty: 3 of 5
Find all natural numbers n such that n2 has only odd digits.

No Solution Yet Submitted by Danish Ahmed Khan    
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re: number | Comment 7 of 8 |
(In reply to number by samuel)

Your share is the great knowledge I have gathered, you are an important person I admire, thank you enable flash in chrome
  Posted by tonny ken on 2019-10-18 21:03:27

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