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Search: id:A036946
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| A036946 |
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Smallest n-digit prime containing only digits 5 and 7, or 0 if no such prime exists. |
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+0
1
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| 5, 0, 557, 5557, 57557, 555557, 5555777, 55555777, 555557557, 5555555557, 55555555777, 555555575557, 5555555757757, 55555555575757, 555555555555557, 5555555555557577, 55555555555777777, 555555555557557757
(list; graph; listen)
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