First numbers that belong to both sets:
4,
8,
16,
21,
25,
32,
35,
49,
50,
55,
64,
81,
93,
98,
100,
115,
121,
128,
133,
143,
155,
161,
171,
185,
203,
205,
217,
242,
247,
253,
256,
259,
265,
279,
289,
299,
301,
309,
319,
324,
327,
333,
341,
351,
355,
361,
381,
385,
391,
392,
400,
403,
415,
425,
451,
453,
471,
481,
484,
493,
505,
511,
512,
515,
517,
527,
529,
535,
539,
551,
565,
575,
578,
583,
589,
595,
597,
611,
623,
625,
635,
651,
671,
687,
689,
707,
713,
721,
722,
731,
737,
749,
755,
767,
779,
781,
784,
793,
799,
800,
803,
805,
815,
817,
835,
837,
841,
849,
865,
871,
875,
889,
899,
901,
905,
913,
923,
925,
935,
939,
949,
959,
961,
968,
979,
981,
985,
1007,
1024,
1027,
1029,
1047,
1053,
1057,
1058,
1067,
1075,
1081,
1089,
1099,
1101,
1119,
1135,
1137,
1143,
1147,
1156,
1159,
1165,
1177,
1183,
1189,
1207,
1211,
1219,
1225,
1243,
1250,
1255,
1261,
1273,
1281,
1296,
1299,
1315,
1317,
1349,
1359,
1371,
1387,
1389,
1397,
1407,
1411,
1413,
1417,
1444,
1461,
1465,
1497,
1507,
1513,
1519,
1533,
1537,
1555,
1573,
1577,
1585,
1591,
1600,
1603,
1623,
1629,
1633,
1639,
1643,
1645,
1651,
1673,
1679,
1681,
1682,
1687,
1691,
1703,
1727,
1735,
1739,
1763,
1765,
1769,
1775,
1807,
1809,
1819,
1821,
1825,
1835,
1837,
1843,
1849,
1855,
1857,
1875,
1893,
1897,
1903,
1915,
1921,
1922,
1927,
1936,
1939,
1955,
1957,
1961,
1967,
1969,
1981,
2007,
2023,
2035,
2041,
2047,
2048,
2057,
2071,
2075,
2077,
2101,
2105,
2116,
2119,
2123,
2125,
2133,
2159,
2171,
2173,
2177,
2183,
2187,
2189,
2197,
2201,
2217,
2231,
2249,
2255,
2257,
2263,
2279,
2285,
2291,
2303,
2305,
2312,
2315,
2317.
Some larger examples :
9999817,
9999831,
9999841,
9999847,
9999851,
9999853,
9999865,
9999881,
9999887,
9999899,
9999905,
9999911,
9999923,
9999947,
9999949,
9999967,
9999977,
9999983,
9999995,
9999997.