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iban n.  and  weak prime

First numbers that belong to both sets:

3, 7, 23, 43, 47, 73, 103, 241, 271, 317, 401, 421, 443, 743, 773, 1021, 1171, 1201, 1217, 1303, 1307, 1321, 1327, 1373, 1723, 2003, 2017, 2143, 2207, 2221, 2243, 2273, 2311, 2341, 2423, 2441, 2447, 2477, 2777, 3001, 3023, 3041, 3121, 3221, 3271, 3301, 3323, 3347, 3373, 3701, 4003, 4007, 4021, 4027, 4111, 4177, 4243, 4273, 4373, 4423, 4703, 4723, 7001, 7027, 7043, 7247, 7417, 7703, 7727, 10103, 10111, 10141, 10223, 10247, 10273, 10303, 10321, 10343, 10711, 11003, 11071, 11173, 11177, 11243, 11321, 11423, 11447, 11471, 11701, 11743, 12011, 12043, 12073, 12101, 12203, 12211, 12241, 12301, 12347, 12421, 12703, 12721, 12743, 14011, 14107, 14177, 14207, 14221, 14303, 14323, 14327, 14347, 14411, 14423, 14717, 14723, 14741, 14771, 17107, 17123, 17321, 17341, 17401, 17471, 20023, 20071, 20117, 20177, 20327, 20411, 20443, 20773, 21023, 21107, 21121, 21143, 21227, 21247, 21323, 21347, 21401, 21407, 21773, 22003, 22111, 22171, 22273, 22307, 22721, 22727, 22741, 23021, 23041, 23071, 23143, 23173, 23203, 23227, 23371, 23473, 23743, 23747, 23773, 24007, 24023, 24121, 24203, 24373, 24421, 24443, 24473, 27017, 27043, 27077, 27143, 27211, 27241, 27701, 27743, 40177, 40241, 40771, 41023, 41117, 41143, 41203, 41243, 41341, 41777, 42023, 42073, 42101, 42223, 42227, 42307, 42443, 42473, 42703, 42727, 42743, 42773, 43103, 43117, 43207, 43271, 43321, 43403, 43411, 43721, 44021, 44071, 44123, 44203, 44207, 44221, 44273, 44417, 44701, 44711, 44773, 44777, 47017, 47123, 47221, 47317, 47441, 47701, 47717, 47743, 70003, 70123, 70141, 70201, 70207, 70241, 70327, 70717, 71023, 71147, 71171, 71341, 71443, 71473, 72047, 72077, 72103, 72173, 72223, 72271, 72277, 72341, 72707, 73043, 73141, 73243, 73421, 73727, 74021, 74027, 74077, 74101, 74177, 74203, 74323, 77003, 77047, 77101, 77141, 77171, 77201, 77243, 77323, 77447, 77723, 77747, 100003, 100271, 100343, 100417, 100703.

Some larger examples :