属于这两组的第一个数字：
2,三,5,7,11,13,17,19,23,29,31,37,41,47,53,59,67,71,83,89,101,107,109,113,127,131,137,139,149,157,167,179,181,191,197,199,211,227,233,239,251,257,263,269,281,293,307,311,317,337,347,353,359,379,389,401,409,419,431,443,449,461,467,479,487,491,499,503,509,521,541,557,563,569,571,577,587,599,617,631,641,647,653,659,677,683,701,719,743,751,761,769,787,797,809,811,821,827,829,839,857,863,877,881,887,911,919,937,941,947,953,971,977,983,991,1009,1019,1031,1039,1049,1061,1091,1097,1109,1117,1151,1163,1187,1193,1201,1217,1229,1259,1277,1283,1289,1291,1297,1301,1319,1327,1361,1367,1381,1399,1409,1427,1439,1451,1459,1471,1481,1487,1499,1511,1553,1559,1567,1583,1601,1607,1619,1621,1637,1667,1669,1697,1709,1721,1733,1759,1777,1787,1801,1847,1871,1877,1889,1901,1907,1913,1931,1949,1979,1997,2003,2017,2027,2029,2039,2069,2081,2087,2099,2111,2129,2141,2153,2179,2207,2213,2237,2243,2251,2267,2269,2281,2309,2333,2339,2351,2357,2381,2389,2393,2411,2417,2441,2447,2459,2467,2477,2531,2543,2549,2557,2579,2591,2609,2621,2647,2657,2659,2687,2699,2711,2719,2729,2731,2741,2777,2789,2801,2837,2843,2857,2861,2879,2897,2909,2927,2939,2957,2963,2969,2971,2999,3011,3037,3041,3061,3083,3089,3119,3137,3167,3181,3187,3191,3203,3221,3251,3257,3259,3271,3299,3307,3329,3347,3359。 一些较大的示例：
19998521,19998533,19998551,19998593,19998607,19998617,19998677,19998701,19998721,19998917,19998989,19999013,19999127,19999253,19999547,19999583,19999631,19999697,19999729,19999739。