属于这两组的第一个数字：
13,31,79,97,167,709,739,761,907,937,1009,1033,1151,1487,1511,1733,1847,1933,3019,3067,3083,3109,3301,3319,3371,3391,3463,3643,3803,7457,7481,7547,7589,7603,7841,9001,9013,9103,9133,9857,10009,10039,10067,10151,10177,10247,10333,10457,10487,11149,11159,11197,11243,11423,11719,11971,12149,12437,12491,12743,12841,13009,13457,13499,13697,13757,13841,13903,13933,14057,14081,14087,14207,14327,14387,14449,14549,14551,14821,14831,14939,15101,15299,15377,15461,15541,15679,15737,16007,16063,16127,16217,16451,16603,16937,17033,17207,17443,17573,17627,17669,17713,17827,17911,18041,18253,18413,18743,18757,18899,19333,19421,19763,30029,30139,30319,30323,30367,30643,30661,30931,31033,31307,31393,31481,31771,32009,32257,32303,32369,32411,32693,32887,32983,33013,33029,33071,33301,33391,33589,33931,34147,34211,34471,34603,34721,34781,34897,34919,35227,35281,35569,35983,36037,36061,36209,36607,36791,36809,37489,37571,37619,38239,38287,38329,38923,38953,39313,39419,39623,39749,39799,39829,70009,70061,70241,70271,70313,70457,70589,70663,70937,71069,71261,71537,71569,72161,72253,72341,72379,72577,72671,72871,73063,73421,73517,73751,73849,73907,73961,74143,74201,75041,75169,75223,75401,75407,75431,75731,75767,75781,76001,76303,76757,77101,77351,77527,77587,78041,78059,78283,78341,78401,78439,78577,78823,79111,79229,79349,79399,79631,79843,79939,90001,90007,90023,90031,90089,90263,90863,91303,91493,91673,91711,91943,92003,92033,92297,92383,92893,93001,93103,93283,93487,93941,93997,94111,94121,94397,94441,94541,94793,94837,95087,95111,96017,96157,96323,96517,96553,96671,97327,97651,98009,98473,98507,98533,99251,99397,99431. 一些较大的示例：
9993089,9993167,9993337,9993703,9993743,9994363,9994373,9995329,9996979,9997303,9997517,9997601,9997613,9998281,9998323,9998903,9999299,9999317,9999337,9999713.