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Search: id:A137110
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| A137110 |
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Numbers n such that n and the square of n use only the digits 2, 5, 6 and 7. |
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+0 1
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| 5, 25, 26, 75, 76, 275, 525, 526, 725, 7525, 27525, 72576, 256266, 276725, 725725, 276726675, 756652275
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