Finite Group Databasebeta

← C2×#1890 #20958

Subgroups — C2×#1890 #20958

Order 256.

1051 conjugacy classes of subgroups; only the 247 normal subgroups are shown.

normal subgroups only

This group has 1051 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×#123C211yesmaximal, characteristic
2C2×#518C211yesmaximal, characteristic
3C22×#99C211yesmaximal, characteristic
4C2×#381C212yesmaximal, complemented
5#1890C218yesmaximal, direct product factor
6C2×#342C212yesmaximal, complemented
7C23×D4C2211yescharacteristic
8C24×C4C2211yescharacteristic
9C2×#123—24no—
10C2×#123—22no—
11C2×#123C418yescomplemented
12C2×#123C2214yes—
13#518—22no—
14#518—24no—
15#518C2214yes—
16C2×C4×D4—24no—
17C2×#117—21no—
18C22×C4⋊C4—21no—
19C22×C22⋊C4—21no—
20C22×C22⋊C4—21no—
21C22×C22⋊C4C2212yes—
22C22×C22⋊C4C2212yes—
23C22×C22⋊C4C2211yescharacteristic
24C2×#99—24no—
25C2×#99C2214yes—
26#381—24no—
27#381C2218yescomplemented
28C2×#95—24no—
29#342C2218yescomplemented
30C25D411yescharacteristic
31C25C2311yescharacteristic
32C22×D4—22no—
33C22×D4—22no—
34C22×D4—24no—
35C22×D4C2×C414yes—
36C22×D4D414yes—
37C22×D4D412yes—
38C22×D4C2312yes—
39C23×C4—21no—
40C23×C4—21no—
41C23×C4—22no—
42C23×C4—21no—
43C23×C4—22no—
44C23×C4—22no—
45C23×C4—24no—
46C23×C4—22no—
47C23×C4—22no—
48C23×C4C2×C414yescomplemented
49C23×C4D411yescharacteristic
50C23×C4D414yes—
51C23×C4C2312yes—
52#123—216no—
53#123—28no—
54#123C2×C4116yescomplemented
55C4×D4—216no—
56C4×D4—216no—
57#117—24no—
58#117—24no—
59C2×C4⋊C4—22no—
60C2×C4⋊C4—28no—
61C2×C4⋊C4—24no—
62C2×C22⋊C4—22no—
63C2×C22⋊C4—24no—
64C2×C22⋊C4—28no—
65C2×C22⋊C4—22no—
66C2×C22⋊C4—24no—
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—24no—
74C2×C22⋊C4—24no—
75C2×C22⋊C4—22no—
76C2×C22⋊C4C2×C414yescomplemented
77C2×C22⋊C4D414yes—
78C2×C22⋊C4C2314yes—
79C2×C22⋊C4C2314yes—
80C2×C22⋊C4C2312yes—
81C2×C42—22no—
82#99—28no—
83#95—216no—
84C24—21no—
85C24—21no—
86C24—22no—
87C24—44no—
88C24—44no—
89C24C22⋊C414yes—
90C24C22×C412yes—
91C24C2×D411yescharacteristic
92C24C2×D412yes—
93C24C2×D412yes—
94C24C2×D411yescharacteristic
95C24C2×D412yes—
96C24C2×D412yes—
97C24#4114yes—
98C24C2411yescharacteristic
99C2×D4—28no—
100C2×D4—28no—
101C2×D4—24no—
102C2×D4—28no—
103C2×D4—28no—
104C2×D4—24no—
105C2×D4—24no—
106C2×D4—24no—
107C2×D4C22⋊C418yes—
108C2×D4C22×C414yes—
109C2×D4C2×D414yes—
110C22×C4—21no—
111C22×C4—21no—
112C22×C4—22no—
113C22×C4—24no—
114C22×C4—24no—
115C22×C4—24no—
116C22×C4—28no—
117C22×C4—28no—
118C22×C4—24no—
119C22×C4—24no—
120C22×C4—22no—
121C22×C4—22no—
122C22×C4—22no—
123C22×C4—24no—
124C22×C4—28no—
125C22×C4—24no—
126C22×C4—24no—
127C22×C4—44no—
128C22×C4—41no—
129C22×C4—42no—
130C22×C4—41no—
131C22×C4—44no—
132C22×C4—44no—
133C22×C4—42no—
134C22×C4—42no—
135C22×C4—48no—
136C22×C4—48no—
137C22×C4—44no—
138C22×C4—84no—
139C22×C4C22⋊C414yes—
140C22×C4C22×C414yescomplemented
141C22×C4C2×D412yes—
142C22×C4C2×D418yes—
143C4⋊C4—28no—
144C4⋊C4—216no—
145C22⋊C4—28no—
146C22⋊C4—216no—
147C22⋊C4—24no—
148C22⋊C4—24no—
149C22⋊C4—24no—
150C22⋊C4—24no—
151C22⋊C4—24no—
152C22⋊C4—22no—
153C22⋊C4—24no—
154C22⋊C4—24no—
155C22⋊C4—44no—
156C22⋊C4C22×C414yescomplemented
157C42—28no—
158C23—28no—
159C23—24no—
160C23—22no—
161C23—24no—
162C23—22no—
163C23—24no—
164C23—44no—
165C23—44no—
166C23—44no—
167C23—42no—
168C23—48no—
169C23—42no—
170C23—48no—
171C23—44no—
172C23—44no—
173C23—84no—
174C23—82no—
175C23C2×C22⋊C412yes—
176C23C2×C22⋊C414yes—
177C23C2×C22⋊C412yes—
178C23C4×D414yes—
179C23C4×D414yes—
180C23#12011yescharacteristic
181C23#12012yes—
182C23#12011yescharacteristic
183C23#12114yes—
184C23#12114yes—
185C23#12312yes—
186C23#12312yes—
187C23C23×C411yescharacteristic
188C23C22×D411yescharacteristic
189C23C22×D412yes—
190C23C22×D411yescharacteristic
191C23C2×#4112yes—
192D4—28no—
193D4—28no—
194D4—216no—
195C2×C4—22no—
196C2×C4—22no—
197C2×C4—24no—
198C2×C4—24no—
199C2×C4—24no—
200C2×C4—24no—
201C2×C4—28no—
202C2×C4—28no—
203C2×C4—48no—
204C2×C4—44no—
205C2×C4—42no—
206C2×C4—44no—
207C2×C4—42no—
208C2×C4—44no—
209C2×C4—48no—
210C2×C4—44no—
211C2×C4—48no—
212C2×C4—48no—
213C2×C4—48no—
214C2×C4—44no—
215C2×C4—84no—
216C2×C4—88no—
217C2×C4—88no—
218C2×C4C2×C22⋊C414yes—
219C22—24no—
220C22—28no—
221C22—24no—
222C22—28no—
223C22—24no—
224C22—22no—
225C22—24no—
226C22—22no—
227C22—24no—
228C22—42no—
229C22—44no—
230C22—44no—
231C22—42no—
232C22—41no—
233C22—41no—
234C22—42no—
235C22—44no—
236C22—48no—
237C22—44no—
238C22—82no—
239C22—84no—
240C22#38612yes—
241C22#38614yes—
242C22#38612yes—
243C22#45814yes—
244C22C22×C22⋊C411yescharacteristic
245C22C2×C4×D412yes—
246C22C2×#12011yescharacteristic
247C22C2×#12112yes—
248C22C2×#12311yescharacteristic
249C4—24no—
250C4—44no—
251C4—48no—
252C4—44no—
253C4—84no—
254C2—21no—
255C2—22no—
256C2—21no—
257C2—22no—
258C2—22no—
259C2—24no—
260C2—44no—
261C2#189014yesdirect product factor
262C2C2×#38611yescharacteristic
263C2C2×#45812yes—
subgroupG/H
center, socleC23#120
commutatorC23C23×C4
Frattini, cosocleC24C24
prime radicalC23×D4C22
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
4. C2×#381C2semidirect
5. #1890C2direct (N × H)
6. C2×#342C2semidirect
11. C2×#123C4semidirect
27. #381C22semidirect
29. #342C22semidirect
48. C23×C4C2×C4semidirect
54. #123C2×C4semidirect
76. C2×C22⋊C4C2×C4semidirect
140. C22×C4C22×C4semidirect
156. C22⋊C4C22×C4semidirect
261. C2#1890direct (N × H)

Maximal subgroups

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

subgroupindex
C22×#1232
C2×#5182
C22×#992
C2×#3812
#18902
C2×#3422