属于这两组的第一个数字:
三,5,7,11,13,17,19,31,33,35,37,41,47,59,61,65,67,69,73,79,87,91,97,103,107,109,115,127,131,133,137,143,145,151,157,161,167,173,179,181,185,191,193,199,211,213,217,223,227,229,233,239,241,247,251,257,259,265,271,283,295,299,307,313,319,321,331,339,341,345,367,379,391,395,397,403,409,415,419,421,431,433,439,443,445,451,457,463,481,487,491,493,499,501,515,517,521,527,535,541,545,551,557,563,565,569,577,583,587,589,595,601,607,611,613,617,623,631,635,641,647,653,659,661,665,671,677,681,695,699,701,707,709,713,719,721,727,731,733,743,749,757,761,769,779,781,787,789,793,799,803,805,809,815,817,823,827,829,835,859,865,871,877,883,885,899,901,911,913,919,923,929,941,947,949,953,967,971,973,985,995,997,1001,1009,1033,1039,1041,1051,1057,1063,1067,1069,1077,1087,1099,1109,1123,1129,1135,1147,1149,1153,1159,1163,1165,1171,1173,1177,1187,1189,1193,1199,1201,1207,1211,1213,1219,1231,1243,1245,1249,1259,1261,1267,1273,1291,1293,1301,1315,1321,1327,1329,1335,1339,1347,1349,1353,1361,1367,1373,1383,1387,1397,1401,1411,1417,1423,1437,1441,1447,1451,1453,1459,1465,1473,1479,1483,1493,1507,1509,1513,1537,1543,1547,1549,1561,1567,1571,1577,1583,1585,1591,1597,1603,1605,1609,1615,1627,1633,1639. 一些较大的示例:
9999853,9999859,9999887,9999895,9999901,9999911,9999917,9999923,9999929,9999943,9999947,9999949,9999955,9999967,9999971,9999973,9999977,9999985,9999991,9999997.