Finite Group Databasebeta

← C2×#1889 #20957

Subgroups — C2×#1889 #20957

Order 256.

1783 conjugacy classes of subgroups; only the 247 normal subgroups are shown.

normal subgroups only

This group has 1783 conjugacy classes of subgroups — too many to draw. Only its 247 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×#120C211yesmaximal, characteristic
2C2×#518C211yesmaximal, characteristic, complemented
3C22×#99C211yesmaximal, characteristic, complemented
4C2×#379C212yesmaximal, complemented
5#1889C218yesmaximal, direct product factor
6C2×#342C212yesmaximal, complemented
7C26C2211yescharacteristic
8C23×D4—21no—
9C23×D4C2211yescharacteristic
10C2×#120—24no—
11C2×#120—22no—
12C2×#120C418yescomplemented
13C2×#120C2214yes—
14#518—22no—
15#518—24no—
16#518C2214yescomplemented
17C2×C4×D4—24no—
18C2×#117—21no—
19C22×C22⋊C4—21no—
20C22×C22⋊C4—21no—
21C22×C22⋊C4—24no—
22C22×C22⋊C4C2212yes—
23C22×C22⋊C4C2212yes—
24C22×C22⋊C4C2211yescharacteristic
25C2×#99—24no—
26C2×#99C2214yescomplemented
27#379—24no—
28#379C2218yescomplemented
29#342C2218yescomplemented
30C25—22no—
31C25—21no—
32C25—22no—
33C25—21no—
34C25—22no—
35C25—24no—
36C25—48no—
37C25C2×C414yescomplemented
38C25D411yescharacteristic
39C25C2312yes—
40C25C2311yescharacteristic
41C22×D4—22no—
42C22×D4—22no—
43C22×D4—24no—
44C22×D4—28no—
45C22×D4—24no—
46C22×D4—48no—
47C22×D4C2×C414yes—
48C22×D4D414yes—
49C22×D4D412yes—
50C22×D4C2312yes—
51C23×C4—21no—
52C23×C4—22no—
53C23×C4—22no—
54C23×C4D411yescharacteristic
55C23×C4D414yescomplemented
56#120—216no—
57#120—28no—
58#120C2×C4116yescomplemented
59C4×D4—216no—
60C4×D4—216no—
61#117—24no—
62#117—24no—
63C2×C4⋊C4—22no—
64C2×C22⋊C4—22no—
65C2×C22⋊C4—24no—
66C2×C22⋊C4—22no—
67C2×C22⋊C4—24no—
68C2×C22⋊C4—22no—
69C2×C22⋊C4—22no—
70C2×C22⋊C4—22no—
71C2×C22⋊C4—21no—
72C2×C22⋊C4—22no—
73C2×C22⋊C4—28no—
74C2×C22⋊C4—24no—
75C2×C22⋊C4—24no—
76C2×C22⋊C4—24no—
77C2×C22⋊C4—22no—
78C2×C22⋊C4—216no—
79C2×C22⋊C4—416no—
80C2×C22⋊C4C2×C414yescomplemented
81C2×C22⋊C4D414yescomplemented
82C2×C22⋊C4C2314yes—
83C2×C22⋊C4C2314yes—
84C2×C22⋊C4C2312yes—
85C2×C42—22no—
86#99—28no—
87C24—216no—
88C24—28no—
89C24—24no—
90C24—28no—
91C24—21no—
92C24—24no—
93C24—22no—
94C24—21no—
95C24—22no—
96C24—24no—
97C24—28no—
98C24—22no—
99C24—24no—
100C24—416no—
101C24—48no—
102C24—44no—
103C24—48no—
104C24—44no—
105C24—416no—
106C24—416no—
107C24—48no—
108C24—432no—
109C24—44no—
110C24—41no—
111C24—42no—
112C24—41no—
113C24—44no—
114C24—44no—
115C24—42no—
116C24—42no—
117C24C22⋊C414yescomplemented
118C24C22×C412yes—
119C24C22×C414yescomplemented
120C24C2×D411yescharacteristic
121C24C2×D412yes—
122C24C2×D412yes—
123C24C2×D411yescharacteristic
124C24C2×D412yes—
125C24C2×D412yes—
126C24#4114yes—
127C24C2411yescharacteristic
128C2×D4—28no—
129C2×D4—28no—
130C2×D4—24no—
131C2×D4—28no—
132C2×D4—28no—
133C2×D4—24no—
134C2×D4—24no—
135C2×D4—24no—
136C2×D4—216no—
137C2×D4—432no—
138C2×D4—416no—
139C2×D4C22⋊C418yescomplemented
140C2×D4C22×C414yes—
141C2×D4C2×D414yes—
142C22×C4—21no—
143C22×C4—21no—
144C22×C4—22no—
145C22×C4—24no—
146C22×C4—24no—
147C22×C4—22no—
148C22×C4—28no—
149C22×C4—24no—
150C22×C4—24no—
151C22×C4—44no—
152C22×C4—48no—
153C22×C4—48no—
154C22×C4—44no—
155C22×C4—84no—
156C22×C4C22⋊C414yescomplemented
157C22×C4C2×D412yes—
158C22×C4C2×D418yescomplemented
159C4⋊C4—28no—
160C22⋊C4—28no—
161C22⋊C4—24no—
162C22⋊C4—24no—
163C22⋊C4—24no—
164C22⋊C4—24no—
165C22⋊C4—24no—
166C22⋊C4—22no—
167C22⋊C4—216no—
168C22⋊C4—24no—
169C22⋊C4—24no—
170C22⋊C4—432no—
171C22⋊C4—44no—
172C22⋊C4C22×C414yescomplemented
173C42—28no—
174C23—28no—
175C23—24no—
176C23—216no—
177C23—216no—
178C23—28no—
179C23—232no—
180C23—24no—
181C23—28no—
182C23—22no—
183C23—24no—
184C23—22no—
185C23—24no—
186C23—44no—
187C23—48no—
188C23—44no—
189C23—44no—
190C23—42no—
191C23—48no—
192C23—42no—
193C23—48no—
194C23—432no—
195C23—416no—
196C23—416no—
197C23—48no—
198C23—44no—
199C23—416no—
200C23—48no—
201C23—416no—
202C23—48no—
203C23—432no—
204C23—416no—
205C23—48no—
206C23—44no—
207C23—432no—
208C23—416no—
209C23—42no—
210C23—44no—
211C23—42no—
212C23—44no—
213C23—48no—
214C23—44no—
215C23—44no—
216C23—48no—
217C23—84no—
218C23—82no—
219C23C2×C22⋊C412yes—
220C23C2×C22⋊C412yes—
221C23C2×C22⋊C414yescomplemented
222C23C4×D414yes—
223C23C4×D414yes—
224C23#12011yescharacteristic
225C23#12012yes—
226C23#12011yescharacteristic
227C23#12114yes—
228C23#12114yes—
229C23#12312yes—
230C23#12312yes—
231C23C23×C411yescharacteristic
232C23C22×D411yescharacteristic
233C23C22×D412yes—
234C23C22×D411yescharacteristic
235C23C2×#4112yes—
236D4—28no—
237D4—28no—
238D4—216no—
239D4—432no—
240C2×C4—22no—
241C2×C4—22no—
242C2×C4—24no—
243C2×C4—24no—
244C2×C4—24no—
245C2×C4—28no—
246C2×C4—48no—
247C2×C4—44no—
248C2×C4—48no—
249C2×C4—48no—
250C2×C4—48no—
251C2×C4—44no—
252C2×C4—84no—
253C2×C4—88no—
254C2×C4—88no—
255C2×C4C2×C22⋊C414yescomplemented
256C22—24no—
257C22—28no—
258C22—28no—
259C22—24no—
260C22—24no—
261C22—22no—
262C22—24no—
263C22—22no—
264C22—28no—
265C22—216no—
266C22—24no—
267C22—42no—
268C22—44no—
269C22—44no—
270C22—42no—
271C22—41no—
272C22—41no—
273C22—42no—
274C22—44no—
275C22—44no—
276C22—416no—
277C22—48no—
278C22—48no—
279C22—416no—
280C22—432no—
281C22—416no—
282C22—48no—
283C22—44no—
284C22—48no—
285C22—44no—
286C22—82no—
287C22—84no—
288C22#38612yes—
289C22#38614yes—
290C22#38612yes—
291C22B(4,𝔽2)14yes—
292C22C22×C22⋊C411yescharacteristic
293C22C2×C4×D412yes—
294C22C2×#12011yescharacteristic
295C22C2×#12112yes—
296C22C2×#12311yescharacteristic
297C4—24no—
298C4—44no—
299C4—48no—
300C4—84no—
301C2—21no—
302C2—22no—
303C2—22no—
304C2—21no—
305C2—22no—
306C2—24no—
307C2—48no—
308C2—44no—
309C2#188914yesdirect product factor
310C2C2×#38611yescharacteristic
311C2C2×B(4,𝔽2)12yes—
subgroupG/H
center, socleC23#120
commutatorC23C23×C4
Frattini, cosocleC24C24
prime radicalC22×#120C2
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C25 ◁ G
LECSG ▷ C24 ▷ C2 ▷ C1

Complements

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

NH ≅ G/Ntype
2. C2×#518C2semidirect
3. C22×#99C2semidirect
4. C2×#379C2semidirect
5. #1889C2direct (N × H)
6. C2×#342C2semidirect
12. C2×#120C4semidirect
16. #518C22semidirect
26. C2×#99C22semidirect
28. #379C22semidirect
29. #342C22semidirect
37. C25C2×C4semidirect
55. C23×C4D4semidirect
58. #120C2×C4semidirect
80. C2×C22⋊C4C2×C4semidirect
81. C2×C22⋊C4D4semidirect
117. C24C22⋊C4semidirect
119. C24C22×C4semidirect
139. C2×D4C22⋊C4semidirect
156. C22×C4C22⋊C4semidirect
158. C22×C4C2×D4semidirect
172. C22⋊C4C22×C4semidirect
221. C23C2×C22⋊C4semidirect
255. C2×C4C2×C22⋊C4semidirect
309. C2#1889direct (N × H)

Maximal subgroups

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

subgroupindex
C22×#1202
C2×#5182
C22×#992
C2×#3792
#18892
C2×#3422