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| Odd digited square (Posted on 2019-06-02) |
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Find all natural numbers n such that n2 has only odd digits.
re(2): All of them
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 | Comment 3 of 8 | 
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(In reply to re: All of them by Kenny M)
Possibly.
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Posted by broll
on 2019-06-02 10:05:18 |
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