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Search: id:A137141
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| A137141 |
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Numbers n such that n and the square of n use only the digits 4, 5, 6, 7 and 9. |
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+0 1
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| 7, 74, 76, 676, 67657, 74476, 97764, 746657, 759576, 774576, 974474, 6674576, 7469657, 7549474, 7745676, 9974766, 67597764, 67797976, 74474476, 74495476, 74669657, 74697764, 74799576, 75475676, 77457574, 97967574, 99777976, 666745676, 675647576, 744759657, 754947976, 977469676, 6676576666, 7449697764, 7459595476, 7469574657
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