属于这两组的第一个数字:
2,三,5,7,11,13,17,19,23,29,37,47,59,67,79,89,113,127,137,139,149,157,167,179,199,223,227,229,233,239,257,269,277,337,347,349,359,367,379,389,449,457,467,479,499,557,569,577,599,677,1117,1123,1129,1223,1229,1237,1249,1259,1277,1279,1289,1367,1399,1447,1459,1489,1499,1559,1567,1579,1667,1669,1699,1777,1789,1889,1999,2237,2239,2267,2269,2333,2339,2347,2357,2377,2389,2399,2447,2459,2467,2477,2557,2579,2677,2689,2699,2777,2789,2999,3347,3359,3389,3449,3457,3467,3469,3499,3557,3559,3677,3779,3889,4447,4457,4567,4679,4789,4799,4889,4999,5557,5569,5669,5689,5779,6679,6689,6779,6899,7789,8999,11113,11117,11119,11149,11159,11177,11239,11257,11279,11299,11369,11399,11447,11467,11489,11579,11677,11689,11699,11777,11779,11789,12227,12239,12269,12277,12289,12347,12377,12379,12457,12479,12569,12577,12589,12689,12799,12889,12899,13337,13339,13367,13399,13457,13469,13477,13499,13567,13577,13669,13679,13789,13799,13999,14447,14449,14479,14489,14557,14669,14699,14779,15559,15569,15667,15679,15889,16699,16889,17789,18899,22229,22247,22259,22277,22279,22349,22367,22369,22447,22469,22567,22669,22679,22699,22777,23333,23339,23357,23369,23399,23447,23459,23557,23567,23599,23669,23677,23689,23789,23899,24469,24499,24677,24799,24889,25577,25579,25589,25667,25679,25799,25889,25999,26669,26699,26777,27779,27799,33347,33349,33359,33377,33457,33469,33479,33569,33577,33589,33599,33679,33889,34457,34469,34499,34589,34667,34679,35569,35677,35899,35999,36677,36779,36899,37799,37889,44449. 一些较大的示例:
666677888999,666678888899,666777777779,666777779999,666788888999,666788899999,667777788889,667777888889,667778899999,667888889999,677777777899,677777899999,677779999999,677899999999,678888899999,688888888999,777777788899,777788899999,778888888889,788888888899.