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idoneal n.  and  katadrome

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(max 15 digits)

First numbers that belong to both sets:

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 21, 30, 40, 42, 60, 70, 72, 85, 93, 210, 520, 760, 840.