属于这两个集合的第一个数字：
15,21,39,63,69,87,93,111,141,159,183,213,219,237,291,303,309,327,381,399,447,453,471,501,519,543,573,591,597,669,687,693,717,723,789,807,813,831,879,933,951,1023,1047,1077,1101,1119,1149,1167,1191,1263,1293,1317,1383,1389,1437,1443,1461,1509,1527,1623,1671,1731,1797,1821,1839,1893,1935,1941,1959,1983,2031,2103,2127,2157,2181,2199,2229,2253,2271,2319,2391,2463,2469,2487,2517,2559,2589,2631,2661,2733,2757,2823,2901,2949,2973,2991,3003,3039,3063,3093,3099,3117,3183,3189,3207,3261,3279,3309,3327,3351,3453,3543,3603,3639,3669,3687,3693,3711,3831,3837,3903,3909,3957,3981,4095,4101,4119,4143,4197,4269,4287,4317,4341,4359,4413,4461,4479,4533,4623,4629,4647,4677,4701,4749,4791,4821,4839,4863,4911,4989,5007,5079,5127,5199,5223,5259,5277,5349,5367,5469,5493,5541,5583,5613,5631,5637,5703,5799,5847,5853,5919,5991,5997,6051,6087,6117,6159,6189,6207,6261,6333,6411,6423,6429,6621,6639,6663,6711,6717,6807,6861,6879,6927,6933,6999,7023,7053,7071,7143,7149,7167,7197,7269,7311,7341,7395,7431,7509,7563,7629,7647,7653,7671,7773,7779,7863,7941,7989,8013,8031,8061,8079,8133,8157,8223,8247,8301,8367,8373,8391,8463,8511,8571,8583,8637,8661,8709,8727,8751,8781,8859,8871,8997,9069,9111,9183,9237,9327,9357,9501,9543,9573,9663,9687,9759,9813,9903,9957,10029,10077,10119,10167,10173,10221,10239,10371,10383,10389,10407,10533,10551,10581,10599,10623,10671,10677,10743,10749,10815,10821. 一些较大的示例：
7041711,7041759,7041813,7041831,7042263,7042317,7042341,7042359,7042461,7042479,7042533,7042647,7042677,7042701,7042719,7042773,7042989,7043079,7043109,7043133.