First numbers that belong to both sets:
7,
13,
15,
21,
31,
37,
63,
69,
79,
87,
93,
111,
127,
133,
135,
141,
151,
159,
189,
205,
219,
223,
231,
237,
261,
285,
303,
319,
327,
349,
357,
367,
391,
399,
415,
421,
429,
463,
477,
487,
495,
511,
517,
519,
535,
541,
559,
583,
591,
613,
615,
621,
631,
639,
645,
651,
655,
679,
685,
693,
717,
723,
727,
735,
741,
777,
781,
805,
823,
831,
855,
885,
895,
903,
925,
927,
933,
957,
975,
981,
991,
997,
1021,
1023,
1029,
1039,
1053,
1057,
1087,
1093,
1095,
1101,
1105,
1117,
1155,
1167,
1183,
1189,
1197,
1201,
1231,
1233,
1245,
1249,
1261,
1263,
1285,
1303,
1309,
1339,
1357,
1365,
1387,
1389,
1419,
1455,
1471,
1485,
1495,
1501,
1503,
1519,
1533,
1543,
1567,
1575,
1597,
1599,
1639,
1645,
1659,
1663,
1693,
1701,
1705,
1711,
1731,
1749,
1765,
1767,
1773,
1797,
1831,
1839,
1869,
1879,
1893,
1933,
1941,
1959,
1965,
1983,
1995,
2023,
2031,
2053,
2059,
2079,
2085,
2095,
2113,
2125,
2127,
2133,
2173,
2215,
2221,
2239,
2253,
2257,
2271,
2277,
2301,
2311,
2317,
2335,
2343,
2365,
2379,
2407,
2415,
2439,
2445,
2461,
2479,
2493,
2511,
2527,
2557,
2575,
2589,
2599,
2607,
2647,
2653,
2661,
2671,
2725,
2773,
2781,
2797,
2815,
2817,
2821,
2823,
2845,
2877,
2887,
2901,
2943,
2953,
2973,
2983,
3003,
3007,
3031,
3037,
3039,
3055,
3099,
3109,
3111,
3133,
3171,
3175,
3183,
3199,
3213,
3223,
3229,
3261,
3289,
3301,
3325,
3339,
3351,
3355,
3381,
3405,
3409,
3433,
3439,
3453,
3477,
3487,
3495,
3559,
3565,
3595,
3597,
3603,
3607,
3613,
3621,
3625,
3655,
3661,
3663,
3669,
3685,
3687,
3709,
3717,
3727,
3781,
3789,
3847,
3865,
3879,
3909,
3943,
3951,
3975,
3981,
3991,
3999,
4015,
4023,
4033,
4045.
Some larger examples :
9999439,
9999477,
9999487,
9999495,
9999511,
9999517,
9999519,
9999541,
9999591,
9999645,
9999655,
9999685,
9999711,
9999741,
9999807,
9999813,
9999823,
9999855,
9999957,
9999997.