Subgroups — C₁₉×#21983 #18027942

Order 4864.

834 conjugacy classes of subgroups.

The subgroup lattice has 346 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	C₂×C₁₉×#431	C₂	1	1	yes	maximal, characteristic
2	C₁₉×#2283	C₂	1	1	yes	maximal, characteristic
3	C₂×C₁₉×#382	C₂	1	1	yes	maximal, characteristic
4	C₁₉×#1949	C₂	1	4	yes	maximal, complemented
5	C₁₉×#1853	C₂	1	2	yes	maximal
6	C₁₉×#1852	C₂	1	2	yes	maximal
7	C₁₉×#1846	C₂	1	2	yes	maximal, complemented
8	C₁₉×#1835	C₂	1	2	yes	maximal, complemented
9	C₂²×C₄⋊C₄×C₁₉	C₂²	1	2	yes	—
10	C₂²×C₄²×C₁₉	C₂²	1	1	yes	characteristic
11	C₁₉×#431	C₄	1	8	yes	complemented
12	C₂×C₁₉×#107	C₂²	1	4	yes	—
13	C₂×C₁₉×#106	C₂²	1	4	yes	—
14	C₂×C₁₉×C₄⋊C₈	C₂²	1	2	yes	—
15	C₂×C₁₉×C₂²⋊C₈	C₂²	1	1	yes	characteristic
16	C₂×C₁₉×C₂²⋊C₈	C₂²	1	1	yes	characteristic
17	C₂×C₄×C₈×C₁₉	C₂²	1	2	yes	—
18	C₁₉×#383	—	2	1	no	—
19	C₁₉×#382	—	2	1	no	—
20	C₁₉×#382	—	2	1	no	—
21	C₁₉×#382	C₂²	1	2	yes	—
22	C₁₉×#382	C₂²	1	2	yes	—
23	C₁₉×#382	C₂²	1	1	yes	characteristic
24	C₁₉×#382	C₂²	1	1	yes	characteristic
25	C₁₉×#381	—	2	1	no	—
26	C₁₉×#380	C₂²	1	2	yes	—
27	C₄×C₄⋊C₄×C₁₉	C₂²	1	2	yes	—
28	C₄×C₂²⋊C₄×C₁₉	—	2	1	no	—
29	C₁₉×#376	—	2	1	no	—
30	C₂×C₁₉×#95	—	2	1	no	—
31	C₂×C₁₉×#95	—	2	1	no	—
32	C₁₉×#340	C₂²	1	4	yes	—
33	C₁₉×#340	C₂²	1	4	yes	—
34	C₂³×C₄×C₁₉	—	2	2	no	—
35	C₂³×C₄×C₁₉	D₄	1	1	yes	characteristic
36	C₂³×C₄×C₁₉	D₄	1	1	yes	characteristic
37	C₂³×C₄×C₁₉	C₂³	1	1	yes	characteristic
38	C₂²×C₈×C₁₉	C₂³	1	2	yes	—
39	C₂²×C₈×C₁₉	C₂³	1	2	yes	—
40	C₂×C₄⋊C₄×C₁₉	—	2	2	no	—
41	C₂×C₄⋊C₄×C₁₉	—	4	4	no	—
42	C₂×C₄⋊C₄×C₁₉	C₂³	1	2	yes	—
43	C₂×C₄⋊C₄×C₁₉	C₂³	1	4	yes	—
44	C₂×C₄⋊C₄×C₁₉	C₂³	1	2	yes	—
45	C₂×C₂²⋊C₄×C₁₉	—	2	2	no	—
46	C₂×C₄²×C₁₉	—	2	2	no	—
47	C₂×C₄²×C₁₉	C₂×C₄	1	4	yes	—
48	C₂×C₄²×C₁₉	D₄	1	1	yes	characteristic
49	C₂×C₄²×C₁₉	D₄	1	1	yes	characteristic
50	C₂×C₄²×C₁₉	Q₈	1	4	yes	—
51	C₂×C₄²×C₁₉	C₂³	1	1	yes	characteristic
52	C₂×C₄²×C₁₉	C₂³	1	1	yes	characteristic
53	C₁₉×#107	—	4	4	no	—
54	C₁₉×#106	—	4	4	no	—
55	C₁₉×C₄⋊C₈	C₂×C₄	1	8	yes	complemented
56	C₁₉×C₂²⋊C₈	C₂×C₄	1	4	yes	—
57	C₁₉×C₂²⋊C₈	C₂×C₄	1	4	yes	—
58	C₄×C₈×C₁₉	C₂×C₄	1	8	yes	complemented
59	C₁₉×#95	—	2	2	no	—
60	C₁₉×#95	—	2	2	no	—
61	C₁₉×#95	—	2	2	no	—
62	C₁₉×#95	—	2	2	no	—
63	C₁₉×#95	—	2	2	no	—
64	C₁₉×#95	—	2	1	no	—
65	C₁₉×#95	—	2	1	no	—
66	C₁₉×#95	—	2	1	no	—
67	C₁₉×#95	—	2	1	no	—
68	C₁₉×#95	—	2	2	no	—
69	C₂⁴×C₁₉	C₂×D₄	1	1	yes	characteristic
70	C₂²×C₄×C₁₉	—	2	4	no	—
71	C₂²×C₄×C₁₉	—	2	2	no	—
72	C₂²×C₄×C₁₉	—	2	2	no	—
73	C₂²×C₄×C₁₉	—	2	2	no	—
74	C₂²×C₄×C₁₉	—	2	2	no	—
75	C₂²×C₄×C₁₉	—	2	4	no	—
76	C₂²×C₄×C₁₉	—	4	2	no	—
77	C₂²×C₄×C₁₉	—	4	4	no	—
78	C₂²×C₄×C₁₉	—	4	4	no	—
79	C₂²×C₄×C₁₉	—	4	4	no	—
80	C₂²×C₄×C₁₉	C₄⋊C₄	1	4	yes	—
81	C₂²×C₄×C₁₉	C₄⋊C₄	1	4	yes	—
82	C₂²×C₄×C₁₉	C₂²×C₄	1	2	yes	—
83	C₂²×C₄×C₁₉	C₂×D₄	1	1	yes	characteristic
84	C₂²×C₄×C₁₉	C₂×D₄	1	1	yes	characteristic
85	C₂²×C₄×C₁₉	C₂×D₄	1	1	yes	characteristic
86	C₂²×C₄×C₁₉	C₂×D₄	1	1	yes	characteristic
87	C₂²×C₄×C₁₉	C₂×D₄	1	1	yes	characteristic
88	C₂²×C₄×C₁₉	C₂×Q₈	1	2	yes	—
89	C₂²×C₄×C₁₉	C₂⁴	1	1	yes	characteristic
90	C₂×C₈×C₁₉	—	2	2	no	—
91	C₂×C₈×C₁₉	—	2	2	no	—
92	C₂×C₈×C₁₉	—	2	2	no	—
93	C₂×C₈×C₁₉	—	2	2	no	—
94	C₂×C₈×C₁₉	C₂²×C₄	1	4	yes	—
95	C₂×C₈×C₁₉	C₂²×C₄	1	4	yes	—
96	C₄⋊C₄×C₁₉	—	2	4	no	—
97	C₄⋊C₄×C₁₉	—	2	4	no	—
98	C₄⋊C₄×C₁₉	—	2	4	no	—
99	C₄⋊C₄×C₁₉	—	2	4	no	—
100	C₄⋊C₄×C₁₉	—	4	4	no	—
101	C₂²⋊C₄×C₁₉	—	4	4	no	—
102	C₄²×C₁₉	—	4	4	no	—
103	C₄²×C₁₉	C₄⋊C₄	1	4	yes	—
104	C₄²×C₁₉	C₄⋊C₄	1	4	yes	—
105	C₄²×C₁₉	C₂²×C₄	1	2	yes	—
106	C₄²×C₁₉	C₂²×C₄	1	2	yes	—
107	C₄²×C₁₉	C₂×Q₈	1	2	yes	—
108	C₄²×C₁₉	C₂×Q₈	1	2	yes	—
109	#21983	C₁₉	1	1	yes	maximal, characteristic, direct product factor, Sylow
110	C₂³×C₁₉	—	2	1	no	—
111	C₂³×C₁₉	—	2	1	no	—
112	C₂³×C₁₉	—	2	2	no	—
113	C₂³×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
114	C₂³×C₁₉	#135	1	4	yes	—
115	C₂³×C₁₉	C₂²×D₄	1	1	yes	characteristic
116	C₂×C₄×C₁₉	—	2	1	no	—
117	C₂×C₄×C₁₉	—	2	1	no	—
118	C₂×C₄×C₁₉	—	2	2	no	—
119	C₂×C₄×C₁₉	—	2	2	no	—
120	C₂×C₄×C₁₉	—	2	2	no	—
121	C₂×C₄×C₁₉	—	2	2	no	—
122	C₂×C₄×C₁₉	—	2	8	no	—
123	C₂×C₄×C₁₉	—	2	4	no	—
124	C₂×C₄×C₁₉	—	2	4	no	—
125	C₂×C₄×C₁₉	—	4	4	no	—
126	C₂×C₄×C₁₉	—	4	4	no	—
127	C₂×C₄×C₁₉	—	4	2	no	—
128	C₂×C₄×C₁₉	—	4	2	no	—
129	C₂×C₄×C₁₉	—	4	2	no	—
130	C₂×C₄×C₁₉	—	4	2	no	—
131	C₂×C₄×C₁₉	—	4	4	no	—
132	C₂×C₄×C₁₉	—	4	2	no	—
133	C₂×C₄×C₁₉	—	4	2	no	—
134	C₂×C₄×C₁₉	—	4	4	no	—
135	C₂×C₄×C₁₉	—	8	8	no	—
136	C₂×C₄×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
137	C₂×C₄×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
138	C₂×C₄×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
139	C₂×C₄×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
140	C₂×C₄×C₁₉	C₂×C₄⋊C₄	1	2	yes	—
141	C₂×C₄×C₁₉	C₂³×C₄	1	1	yes	characteristic
142	C₂×C₄×C₁₉	C₂²×Q₈	1	1	yes	characteristic
143	C₂×C₄×C₁₉	H(5,𝔽₂)	1	2	yes	—
144	C₂×C₄×C₁₉	2₋¹⁺⁴	1	2	yes	—
145	C₈×C₁₉	—	2	4	no	—
146	C₈×C₁₉	—	2	4	no	—
147	C₂×#431	C₂×C₁₉	1	1	yes	characteristic
148	#2283	C₂×C₁₉	1	1	yes	characteristic
149	C₂×#382	C₂×C₁₉	1	1	yes	characteristic
150	#1949	C₂×C₁₉	1	4	yes	complemented
151	#1853	C₂×C₁₉	1	2	yes	—
152	#1852	C₂×C₁₉	1	2	yes	—
153	#1846	C₂×C₁₉	1	2	yes	complemented
154	#1835	C₂×C₁₉	1	2	yes	complemented
155	C₂²×C₁₉	—	2	2	no	—
156	C₂²×C₁₉	—	2	2	no	—
157	C₂²×C₁₉	—	2	4	no	—
158	C₂²×C₁₉	—	2	4	no	—
159	C₂²×C₁₉	#427	1	4	yes	—
160	C₂²×C₁₉	C₂²×C₄⋊C₄	1	1	yes	characteristic
161	C₂²×C₁₉	#535	1	1	yes	characteristic
162	C₂²×C₁₉	#536	1	1	yes	characteristic
163	C₂²×C₁₉	C₂×#135	1	2	yes	—
164	C₂²×C₁₉	#575	1	2	yes	—
165	C₄×C₁₉	—	2	2	no	—
166	C₄×C₁₉	—	2	2	no	—
167	C₄×C₁₉	—	2	2	no	—
168	C₄×C₁₉	—	2	2	no	—
169	C₄×C₁₉	—	2	2	no	—
170	C₄×C₁₉	—	8	2	no	—
171	C₄×C₁₉	—	8	4	no	—
172	C₄×C₁₉	—	8	2	no	—
173	C₄×C₁₉	#520	1	2	yes	—
174	C₄×C₁₉	#544	1	2	yes	—
175	C₂²×C₄⋊C₄	C₂²×C₁₉	1	2	yes	—
176	C₂²×C₄²	C₂²×C₁₉	1	1	yes	characteristic
177	#431	C₄×C₁₉	1	8	yes	complemented
178	C₂×#107	C₂²×C₁₉	1	4	yes	—
179	C₂×#106	C₂²×C₁₉	1	4	yes	—
180	C₂×C₄⋊C₈	C₂²×C₁₉	1	2	yes	—
181	C₂×C₂²⋊C₈	C₂²×C₁₉	1	1	yes	characteristic
182	C₂×C₂²⋊C₈	C₂²×C₁₉	1	1	yes	characteristic
183	C₂×C₄×C₈	C₂²×C₁₉	1	2	yes	—
184	#383	—	2	1	no	—
185	#382	—	2	1	no	—
186	#382	—	2	1	no	—
187	#382	C₂²×C₁₉	1	1	yes	characteristic
188	#382	C₂²×C₁₉	1	2	yes	—
189	#382	C₂²×C₁₉	1	1	yes	characteristic
190	#382	C₂²×C₁₉	1	2	yes	—
191	#381	—	2	1	no	—
192	#380	C₂²×C₁₉	1	2	yes	—
193	C₄×C₄⋊C₄	C₂²×C₁₉	1	2	yes	—
194	C₄×C₂²⋊C₄	—	2	1	no	—
195	#376	—	2	1	no	—
196	C₂×#95	—	2	1	no	—
197	C₂×#95	—	2	1	no	—
198	#340	C₂²×C₁₉	1	4	yes	—
199	#340	C₂²×C₁₉	1	4	yes	—
200	C₂×C₁₉	—	2	4	no	—
201	C₂×C₁₉	#2317	1	1	yes	characteristic
202	C₂×C₁₉	C₂×#427	1	1	yes	characteristic
203	C₂×C₁₉	#2911	1	1	yes	characteristic
204	C₂×C₁₉	#3211	1	2	yes	—
205	C₂×C₁₉	#3232	1	2	yes	—
206	C₂³×C₄	—	2	2	no	—
207	C₂³×C₄	D₄×C₁₉	1	1	yes	characteristic
208	C₂³×C₄	D₄×C₁₉	1	1	yes	characteristic
209	C₂³×C₄	C₂³×C₁₉	1	1	yes	characteristic
210	C₂²×C₈	C₂³×C₁₉	1	2	yes	—
211	C₂²×C₈	C₂³×C₁₉	1	2	yes	—
212	C₂×C₄⋊C₄	—	2	2	no	—
213	C₂×C₄⋊C₄	—	4	4	no	—
214	C₂×C₄⋊C₄	C₂³×C₁₉	1	4	yes	—
215	C₂×C₄⋊C₄	C₂³×C₁₉	1	2	yes	—
216	C₂×C₄⋊C₄	C₂³×C₁₉	1	2	yes	—
217	C₂×C₂²⋊C₄	—	2	2	no	—
218	C₂×C₄²	—	2	2	no	—
219	C₂×C₄²	C₂×C₄×C₁₉	1	4	yes	—
220	C₂×C₄²	D₄×C₁₉	1	1	yes	characteristic
221	C₂×C₄²	D₄×C₁₉	1	1	yes	characteristic
222	C₂×C₄²	Q₈×C₁₉	1	4	yes	—
223	C₂×C₄²	C₂³×C₁₉	1	1	yes	characteristic
224	C₂×C₄²	C₂³×C₁₉	1	1	yes	characteristic
225	#107	—	4	4	no	—
226	#106	—	4	4	no	—
227	C₄⋊C₈	C₂×C₄×C₁₉	1	8	yes	complemented
228	C₂²⋊C₈	C₂×C₄×C₁₉	1	4	yes	—
229	C₂²⋊C₈	C₂×C₄×C₁₉	1	4	yes	—
230	C₄×C₈	C₂×C₄×C₁₉	1	8	yes	complemented
231	#95	—	2	2	no	—
232	#95	—	2	2	no	—
233	#95	—	2	2	no	—
234	#95	—	2	2	no	—
235	#95	—	2	2	no	—
236	#95	—	2	1	no	—
237	#95	—	2	1	no	—
238	#95	—	2	1	no	—
239	#95	—	2	1	no	—
240	#95	—	2	2	no	—
241	C₁₉	#21983	1	1	yes	characteristic, direct product factor, Sylow
242	C₂⁴	C₂×D₄×C₁₉	1	1	yes	characteristic
243	C₂²×C₄	—	2	4	no	—
244	C₂²×C₄	—	2	2	no	—
245	C₂²×C₄	—	2	2	no	—
246	C₂²×C₄	—	2	2	no	—
247	C₂²×C₄	—	2	2	no	—
248	C₂²×C₄	—	2	4	no	—
249	C₂²×C₄	—	4	2	no	—
250	C₂²×C₄	—	4	4	no	—
251	C₂²×C₄	—	4	4	no	—
252	C₂²×C₄	—	4	4	no	—
253	C₂²×C₄	C₄⋊C₄×C₁₉	1	4	yes	—
254	C₂²×C₄	C₄⋊C₄×C₁₉	1	4	yes	—
255	C₂²×C₄	C₂²×C₄×C₁₉	1	2	yes	—
256	C₂²×C₄	C₂×D₄×C₁₉	1	1	yes	characteristic
257	C₂²×C₄	C₂×D₄×C₁₉	1	1	yes	characteristic
258	C₂²×C₄	C₂×D₄×C₁₉	1	1	yes	characteristic
259	C₂²×C₄	C₂×D₄×C₁₉	1	1	yes	characteristic
260	C₂²×C₄	C₂×D₄×C₁₉	1	1	yes	characteristic
261	C₂²×C₄	C₂×Q₈×C₁₉	1	2	yes	—
262	C₂²×C₄	C₂⁴×C₁₉	1	1	yes	characteristic
263	C₂×C₈	—	2	2	no	—
264	C₂×C₈	—	2	2	no	—
265	C₂×C₈	—	2	2	no	—
266	C₂×C₈	—	2	2	no	—
267	C₂×C₈	C₂²×C₄×C₁₉	1	4	yes	—
268	C₂×C₈	C₂²×C₄×C₁₉	1	4	yes	—
269	C₄⋊C₄	—	2	4	no	—
270	C₄⋊C₄	—	2	4	no	—
271	C₄⋊C₄	—	2	4	no	—
272	C₄⋊C₄	—	2	4	no	—
273	C₄⋊C₄	—	4	4	no	—
274	C₂²⋊C₄	—	4	4	no	—
275	C₄²	—	4	4	no	—
276	C₄²	C₄⋊C₄×C₁₉	1	4	yes	—
277	C₄²	C₄⋊C₄×C₁₉	1	4	yes	—
278	C₄²	C₂²×C₄×C₁₉	1	2	yes	—
279	C₄²	C₂²×C₄×C₁₉	1	2	yes	—
280	C₄²	C₂×Q₈×C₁₉	1	2	yes	—
281	C₄²	C₂×Q₈×C₁₉	1	2	yes	—
282	C₂³	—	2	1	no	—
283	C₂³	—	2	1	no	—
284	C₂³	—	2	2	no	—
285	C₂³	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
286	C₂³	C₁₉×#135	1	4	yes	—
287	C₂³	C₂²×D₄×C₁₉	1	1	yes	characteristic
288	C₂×C₄	—	2	8	no	—
289	C₂×C₄	—	2	1	no	—
290	C₂×C₄	—	2	1	no	—
291	C₂×C₄	—	2	2	no	—
292	C₂×C₄	—	2	2	no	—
293	C₂×C₄	—	2	2	no	—
294	C₂×C₄	—	2	2	no	—
295	C₂×C₄	—	2	4	no	—
296	C₂×C₄	—	2	4	no	—
297	C₂×C₄	—	4	4	no	—
298	C₂×C₄	—	4	4	no	—
299	C₂×C₄	—	4	2	no	—
300	C₂×C₄	—	4	2	no	—
301	C₂×C₄	—	4	2	no	—
302	C₂×C₄	—	4	2	no	—
303	C₂×C₄	—	4	4	no	—
304	C₂×C₄	—	4	2	no	—
305	C₂×C₄	—	4	2	no	—
306	C₂×C₄	—	4	4	no	—
307	C₂×C₄	—	8	8	no	—
308	C₂×C₄	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
309	C₂×C₄	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
310	C₂×C₄	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
311	C₂×C₄	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
312	C₂×C₄	C₂×C₄⋊C₄×C₁₉	1	2	yes	—
313	C₂×C₄	C₂³×C₄×C₁₉	1	1	yes	characteristic
314	C₂×C₄	C₂²×Q₈×C₁₉	1	1	yes	characteristic
315	C₂×C₄	C₁₉×H(5,𝔽₂)	1	2	yes	—
316	C₂×C₄	C₁₉×2₋¹⁺⁴	1	2	yes	—
317	C₈	—	2	4	no	—
318	C₈	—	2	4	no	—
319	C₂²	—	2	2	no	—
320	C₂²	—	2	4	no	—
321	C₂²	—	2	4	no	—
322	C₂²	—	2	2	no	—
323	C₂²	C₁₉×#427	1	4	yes	—
324	C₂²	C₂²×C₄⋊C₄×C₁₉	1	1	yes	characteristic
325	C₂²	C₁₉×#535	1	1	yes	characteristic
326	C₂²	C₁₉×#536	1	1	yes	characteristic
327	C₂²	C₂×C₁₉×#135	1	2	yes	—
328	C₂²	C₁₉×#575	1	2	yes	—
329	C₄	—	2	2	no	—
330	C₄	—	2	2	no	—
331	C₄	—	2	2	no	—
332	C₄	—	2	2	no	—
333	C₄	—	2	2	no	—
334	C₄	—	8	4	no	—
335	C₄	—	8	2	no	—
336	C₄	—	8	2	no	—
337	C₄	C₁₉×#520	1	2	yes	—
338	C₄	C₁₉×#544	1	2	yes	—
339	C₂	—	2	4	no	—
340	C₂	C₁₉×#2317	1	1	yes	characteristic
341	C₂	C₂×C₁₉×#427	1	1	yes	characteristic
342	C₂	C₁₉×#2911	1	1	yes	characteristic
343	C₂	C₁₉×#3211	1	2	yes	—
344	C₂	C₁₉×#3232	1	2	yes	—

	subgroup	G/H
center, socle	C₂³×C₁₉	C₂²×D₄
commutator	C₂×C₄	C₂³×C₄×C₁₉
Frattini, cosocle	C₂²×C₄	C₂⁴×C₁₉
prime radical	C₂⁴×C₁₉	C₂×D₄
LCS	G ▷ C₂×C₄ ▷ C₂ ▷ C₁
UCS	C₁ ◁ C₂³×C₁₉ ◁ C₂²×C₄²×C₁₉ ◁ G

Complements

Splittings G = N ⋊ H with N normal; H ≅ G/N.

N	H ≅ G/N	type
4. C₁₉×#1949	C₂	semidirect
7. C₁₉×#1846	C₂	semidirect
8. C₁₉×#1835	C₂	semidirect
11. C₁₉×#431	C₄	semidirect
55. C₁₉×C₄⋊C₈	C₂×C₄	semidirect
58. C₄×C₈×C₁₉	C₂×C₄	semidirect
109. #21983	C₁₉	direct (N × H)
150. #1949	C₂×C₁₉	semidirect
153. #1846	C₂×C₁₉	semidirect
154. #1835	C₂×C₁₉	semidirect
177. #431	C₄×C₁₉	semidirect
227. C₄⋊C₈	C₂×C₄×C₁₉	semidirect
230. C₄×C₈	C₂×C₄×C₁₉	semidirect
241. C₁₉	#21983	direct (N × H)

Maximal subgroups

By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.

subgroup	index
C₂×C₁₉×#431	2
C₁₉×#2283	2
C₂×C₁₉×#382	2
C₁₉×#1949	2
C₁₉×#1853	2
C₁₉×#1852	2
C₁₉×#1846	2
C₁₉×#1835	2
#21983	19

Subgroups — C19×#21983 #18027942

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₁₉×#21983 #18027942