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emirp  and  katadrome

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(max 15 digits)

First numbers that belong to both sets:

31, 71, 73, 97, 743, 751, 761, 941, 953, 971, 983, 7321, 7643, 9421, 9521, 9643, 9721, 9871, 75431, 96431, 97651, 98543, 98621, 98731, 986543, 9875321.