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interprime n.  and  practical n.

First numbers that belong to both sets:

4, 6, 12, 18, 30, 42, 56, 60, 64, 72, 108, 120, 144, 150, 160, 176, 180, 192, 198, 228, 240, 260, 270, 288, 300, 312, 324, 342, 348, 414, 420, 432, 462, 522, 532, 544, 552, 560, 570, 600, 660, 680, 696, 714, 736, 780, 792, 810, 816, 828, 858, 870, 882, 924, 960, 980, 1020, 1026, 1032, 1036, 1044, 1050, 1056, 1092, 1100, 1120, 1140, 1152, 1176, 1184, 1230, 1254, 1290, 1302, 1320, 1344, 1404, 1416, 1428, 1452, 1456, 1476, 1482, 1488, 1496, 1590, 1620, 1624, 1632, 1722, 1728, 1768, 1806, 1872, 1904, 1932, 1950, 1976, 1998, 2028, 2046, 2058, 2088, 2112, 2130, 2142, 2268, 2310, 2322, 2340, 2420, 2430, 2550, 2592, 2640, 2652, 2680, 2688, 2730, 2736, 2760, 2772, 2790, 2840, 2900, 2960, 2970, 3000, 3120, 3150, 3168, 3240, 3300, 3304, 3330, 3360, 3366, 3468, 3480, 3528, 3536, 3540, 3552, 3588, 3600, 3640, 3672, 3750, 3800, 3822, 3828, 3840, 3870, 3978, 4020, 4050, 4092, 4096, 4128, 4136, 4158, 4224, 4230, 4248, 4256, 4260, 4266, 4272, 4312, 4332, 4368, 4422, 4472, 4482, 4488, 4500, 4600, 4650, 4788, 4800, 4824, 4896, 4914, 4940, 4968, 4980, 5016, 5022, 5100, 5104, 5160, 5184, 5232, 5280, 5300, 5328, 5340, 5418, 5460, 5478, 5520, 5544, 5586, 5640, 5664, 5676, 5742, 5796, 5824, 5850, 5874, 5880, 5900, 5984, 6020, 6060, 6076, 6084, 6090, 6132, 6138, 6270, 6300, 6320, 6348, 6360, 6384, 6424, 6450, 6460, 6552, 6570, 6656, 6660, 6696, 6762, 6780, 6786, 6798, 6860, 6960, 7050, 7128, 7140, 7168, 7182, 7200, 7216, 7224, 7290, 7308, 7326, 7332, 7350, 7360, 7458, 7488, 7520, 7548, 7560, 7590, 7614, 7820, 7860, 7878, 7904, 7950, 8010, 8064, 8120, 8200, 8220, 8232, 8240, 8280, 8382, 8464, 8484, 8532, 8568.

Some larger examples :