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10000169 (another Prime Pages' Curiosity) |
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Smallest 8-digit emirp, and smallest n-digit emirp for any
n whose sum of digits is also an emirp: 1+0+0+0+0+1+6+9 =
17, whose reversal 71 is prime. Curiously, 1+7 = 8, same as
the 8-digit curio. [Post]
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