Divisibility Criteria for Class Numbers of Imaginary Quadratic Fields Whose Discriminant Has Only Two Prime Factors

Table 1

𝐷	𝑝	𝑞	𝑟	ℎ(𝐷)
65	5	13	17	8
1165	5	233	41	20
3341	13	257	41	72
10685	5	2137	73	116
30769	29	1061	41	112
45349	101	449	17	168
95509	149	641	17	176
97309	73	1333	89	216
102689	29	3541	73	496
125009	41	3049	17	504
18497	53	349	41	168
20453	113	181	17	116
223721	137	1633	97	496
378905	5	75781	41	592
567137	17	333613	89	640
650117	13	50009	17	848
735929	373	1973	41	1664
847085	5	169417	73	936
874589	241	3629	17	1160
875705	5	175141	41	1328
876461	53	16537	73	1584
971081	109	8909	17	1464
971413	29	33497	73	336
978809	13	75293	89	1728
987169	97	10177	17	624
999997	757	1321	17	380