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| Harmonic Power Treat (Posted on 2014-11-22) |
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For how many ordered pairs (x,y,z) of positive integers with x < y < z is the harmonic mean of x, y and z equal to 1220?
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 | Corrigendum | K Sengupta | 2014-11-23 00:09:28 |
 | Question | Ady TZIDON | 2014-11-22 15:56:42 |
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