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A118718
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Lucky numbers with only prime digits.
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1
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3, 7, 25, 33, 37, 73, 75, 223, 235, 237, 273, 327, 357, 535, 537, 553, 577, 723, 727, 735, 777, 2253, 2257, 2277, 2323, 2335, 2355, 2523, 2527, 2557, 2575, 2725, 2755, 2773, 3223, 3235, 3325, 3355, 3727, 3753, 5233, 5235, 5253, 5277, 5325
(list; graph; refs; listen; history; internal format)
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