Finite Group Databasebeta

← C2×#1854 #20842

Subgroups — C2×#1854 #20842

Order 256.

831 conjugacy classes of subgroups.

The subgroup lattice has 263 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×#117C211yesmaximal, characteristic
2C22×#107C211yesmaximal, characteristic, complemented
3C22×#106C211yesmaximal, characteristic, complemented
4C22×C22⋊C8C211yesmaximal, characteristic
5C2×#380C211yesmaximal, characteristic
6#1854C218yesmaximal, direct product factor
7C2×#340C211yesmaximal, characteristic, complemented
8C2×#340C211yesmaximal, characteristic, complemented
9C24×C4C2211yescharacteristic
10C23×C8C2211yescharacteristic
11C23×C8C2211yescharacteristic
12C2×#117—22no—
13C2×#117—24no—
14C2×#117—24no—
15C2×#117C2214yes—
16C22×C4⋊C4C2211yescharacteristic
17C22×C4⋊C4C2211yescharacteristic
18C22×C4⋊C4C2211yescharacteristic
19C22×C4⋊C4C2211yescharacteristic
20C22×C22⋊C4—21no—
21C22×C22⋊C4—21no—
22C22×C42—21no—
23C2×#107—24no—
24C2×#107C2214yescomplemented
25C2×#106—24no—
26C2×#106C2214yescomplemented
27C2×C22⋊C8C418yescomplemented
28C2×C22⋊C8C2214yes—
29#380—22no—
30#380C2214yes—
31C2×#95—21no—
32#340C2214yescomplemented
33#340C2214yescomplemented
34C25D411yescharacteristic
35C23×C4—22no—
36C23×C4—22no—
37C23×C4—22no—
38C23×C4—22no—
39C23×C4—21no—
40C23×C4—21no—
41C23×C4—21no—
42C23×C4—21no—
43C23×C4C2×C414yes—
44C23×C4D412yes—
45C23×C4D411yescharacteristic
46C23×C4Q814yes—
47C23×C4C2312yes—
48C23×C4C2311yescharacteristic
49C22×C8—22no—
50C22×C8—22no—
51C22×C8—22no—
52C22×C8—22no—
53C22×C8C2×C414yes—
54C22×C8C2×C414yes—
55C22×C8C2312yes—
56C22×C8C2312yes—
57#117—216no—
58#117—28no—
59#117—28no—
60C2×C4⋊C4—21no—
61C2×C4⋊C4—21no—
62C2×C4⋊C4—22no—
63C2×C4⋊C4—22no—
64C2×C4⋊C4—22no—
65C2×C4⋊C4—22no—
66C2×C4⋊C4—22no—
67C2×C4⋊C4—22no—
68C2×C4⋊C4—21no—
69C2×C4⋊C4—21no—
70C2×C4⋊C4D414yes—
71C2×C4⋊C4D414yes—
72C2×C4⋊C4C2312yes—
73C2×C4⋊C4C2312yes—
74C2×C4⋊C4C2312yes—
75C2×C4⋊C4C2312yes—
76C2×C22⋊C4—28no—
77C2×C22⋊C4—24no—
78C2×C22⋊C4—24no—
79C2×C22⋊C4—44no—
80C2×C42—28no—
81C2×C42—24no—
82#107—28no—
83#106—28no—
84C22⋊C8C2×C4116yescomplemented
85#95—24no—
86C24—22no—
87C24—22no—
88C24—22no—
89C24—22no—
90C24—22no—
91C24—22no—
92C24C4⋊C414yes—
93C24C2×D412yes—
94C24C2×D411yescharacteristic
95C22×C4—22no—
96C22×C4—22no—
97C22×C4—28no—
98C22×C4—28no—
99C22×C4—24no—
100C22×C4—28no—
101C22×C4—28no—
102C22×C4—24no—
103C22×C4—22no—
104C22×C4—22no—
105C22×C4—22no—
106C22×C4—22no—
107C22×C4—24no—
108C22×C4—24no—
109C22×C4—22no—
110C22×C4—22no—
111C22×C4—22no—
112C22×C4—22no—
113C22×C4—42no—
114C22×C4—42no—
115C22×C4—42no—
116C22×C4—42no—
117C22×C4—42no—
118C22×C4—42no—
119C22×C4—42no—
120C22×C4—42no—
121C22×C4—42no—
122C22×C4—42no—
123C22×C4C4⋊C414yes—
124C22×C4C4⋊C418yes—
125C22×C4C22×C414yes—
126C22×C4C22×C412yes—
127C22×C4C2×D412yes—
128C22×C4C2×D411yescharacteristic
129C22×C4C2×D412yes—
130C22×C4C2×D412yes—
131C22×C4C2×Q814yes—
132C22×C4C2×Q812yes—
133C22×C4#4112yes—
134C22×C4#4112yes—
135C22×C4C2411yescharacteristic
136C2×C8—28no—
137C2×C8—28no—
138C2×C8—22no—
139C2×C8—22no—
140C2×C8—22no—
141C2×C8—22no—
142C2×C8C22×C414yes—
143C2×C8C22×C414yes—
144C4⋊C4—24no—
145C4⋊C4—24no—
146C4⋊C4—22no—
147C4⋊C4—22no—
148C4⋊C4—22no—
149C4⋊C4—22no—
150C4⋊C4—22no—
151C4⋊C4—22no—
152C4⋊C4—42no—
153C4⋊C4—42no—
154C4⋊C4C2×D414yes—
155C4⋊C4C2×D414yes—
156C22⋊C4—216no—
157C22⋊C4—48no—
158C42—216no—
159C23—22no—
160C23—22no—
161C23—22no—
162C23—22no—
163C23—22no—
164C23—22no—
165C23—28no—
166C23—28no—
167C23—28no—
168C23—44no—
169C23—44no—
170C23—44no—
171C23—44no—
172C23C2×C4⋊C414yes—
173C23C2×C4⋊C412yes—
174C23#12012yes—
175C23#12312yes—
176C23#13512yes—
177C23#13512yes—
178C23AGL(1,ℤ/8)12yes—
179C23#13712yes—
180C23C22×D411yescharacteristic
181C2×C4—22no—
182C2×C4—22no—
183C2×C4—28no—
184C2×C4—24no—
185C2×C4—24no—
186C2×C4—24no—
187C2×C4—24no—
188C2×C4—216no—
189C2×C4—24no—
190C2×C4—24no—
191C2×C4—42no—
192C2×C4—42no—
193C2×C4—42no—
194C2×C4—42no—
195C2×C4—48no—
196C2×C4—48no—
197C2×C4—42no—
198C2×C4—42no—
199C2×C4—42no—
200C2×C4—42no—
201C2×C4—42no—
202C2×C4—42no—
203C2×C4—84no—
204C2×C4—84no—
205C2×C4C2×C4⋊C414yes—
206C2×C4C2×C4⋊C412yes—
207C2×C4C4×D414yes—
208C2×C4C4×D414yes—
209C2×C4#12012yes—
210C2×C4C22⋊Q814yes—
211C2×C4C22⋊Q814yes—
212C2×C4#12312yes—
213C2×C4C23×C411yescharacteristic
214C2×C4C22×D411yescharacteristic
215C2×C4C22×D411yescharacteristic
216C2×C4C22×Q811yescharacteristic
217C2×C4C2×#4111yescharacteristic
218C2×C4C2×#4111yescharacteristic
219C8—24no—
220C8—24no—
221C22—24no—
222C22—24no—
223C22—24no—
224C22—42no—
225C22—42no—
226C22—416no—
227C22—42no—
228C22—42no—
229C22#38514yes—
230C22#42714yes—
231C22#42814yes—
232C22#44914yes—
233C22#45214yes—
234C22#48214yes—
235C22#48514yes—
236C22C22×C4⋊C411yescharacteristic
237C22C2×#12011yescharacteristic
238C22C2×#12311yescharacteristic
239C22C2×#13511yescharacteristic
240C22C2×#13511yescharacteristic
241C22C2×AGL(1,ℤ/8)11yescharacteristic
242C22C2×#13711yescharacteristic
243C4—24no—
244C4—44no—
245C4—44no—
246C4—82no—
247C4—82no—
248C4#38514yes—
249C4C2×C4×D411yescharacteristic
250C4C2×C4×D411yescharacteristic
251C4C2×C22⋊Q811yescharacteristic
252C4C2×C22⋊Q811yescharacteristic
253C2—44no—
254C2#185418yesdirect product factor
255C2C2×#38511yescharacteristic
256C2C2×#42711yescharacteristic
257C2C2×#42811yescharacteristic
258C2C2×#44911yescharacteristic
259C2C2×#45211yescharacteristic
260C2C2×#48211yescharacteristic
261C2C2×#48511yescharacteristic
subgroupG/H
center, socleC24C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC25D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C24 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

Complements

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

NH ≅ G/Ntype
2. C22×#107C2semidirect
3. C22×#106C2semidirect
6. #1854C2direct (N × H)
7. C2×#340C2semidirect
8. C2×#340C2semidirect
24. C2×#107C22semidirect
26. C2×#106C22semidirect
27. C2×C22⋊C8C4semidirect
32. #340C22semidirect
33. #340C22semidirect
84. C22⋊C8C2×C4semidirect
254. C2#1854direct (N × H)

Maximal subgroups

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

subgroupindex
C22×#1172
C22×#1072
C22×#1062
C22×C22⋊C82
C2×#3802
#18542
C2×#3402