Finite Group Databasebeta

← C2×#1882 #20940

Subgroups — C2×#1882 #20940

Order 256.

901 conjugacy classes of subgroups.

The subgroup lattice has 332 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×#137C211yesmaximal, characteristic
2C2×#520C211yesmaximal, characteristic
3C22×#104C211yesmaximal, characteristic
4C2×#419C211yesmaximal, characteristic, complemented
5C2×#391C211yesmaximal, characteristic, complemented
6#1882C218yesmaximal, direct product factor
7C2×#343C211yesmaximal, characteristic, complemented
8C2×#339C211yesmaximal, characteristic, complemented
9C22×#41C2211yescharacteristic
10C23×Q8C2211yescharacteristic
11C2×#137—24no—
12C2×#137—22no—
13C2×#137C418yescomplemented
14C2×#137C2214yes—
15C22×Q16—21no—
16C22×SD16—21no—
17C22×M16C2211yescharacteristic
18C22×M16C2211yescharacteristic
19#520—22no—
20#520—22no—
21#520—22no—
22#520C2214yes—
23C2×C4×Q8—21no—
24C2×C4×D4—21no—
25C2×C4×D4—22no—
26C2×#117—21no—
27C2×#117C2211yescharacteristic
28C22×C4⋊C4—21no—
29C22×C4⋊C4C2211yescharacteristic
30C22×C42C2211yescharacteristic
31C2×#104—24no—
32C2×#104C2214yes—
33#419—22no—
34#419C2214yescomplemented
35C2×#103—21no—
36C2×#103—21no—
37#391—22no—
38#391C2214yescomplemented
39C2×#95—22no—
40#343C2214yescomplemented
41#339C2214yescomplemented
42C2×#41—21no—
43C2×#41—21no—
44C2×#41—22no—
45C2×#41—22no—
46C2×#41C2×C414yes—
47C2×#41D414yes—
48C2×#41D412yes—
49C2×#41C2312yes—
50C22×Q8—21no—
51C22×Q8—22no—
52C22×Q8—21no—
53C22×Q8—21no—
54C22×Q8—22no—
55C22×Q8—21no—
56C22×Q8—21no—
57C22×Q8—22no—
58C22×Q8C2×C414yescomplemented
59C22×Q8D411yescharacteristic
60C22×Q8C2312yes—
61C22×D4—21no—
62C22×D4D411yescharacteristic
63C23×C4—21no—
64C23×C4—21no—
65C23×C4—21no—
66C23×C4—22no—
67C23×C4D412yes—
68C23×C4C2311yescharacteristic
69#137—216no—
70#137—28no—
71#137C2×C4116yescomplemented
72C2×Q16—28no—
73C2×Q16—24no—
74C2×SD16—28no—
75C2×SD16—24no—
76C2×M16—22no—
77C2×M16—21no—
78C2×M16—21no—
79C2×M16—22no—
80C2×M16—22no—
81C2×M16C2×C414yescomplemented
82C2×M16C2312yes—
83C2×M16C2312yes—
84C22×C8—21no—
85C22×C8—21no—
86C4×Q8—24no—
87C4×Q8—24no—
88C4×D4—28no—
89C4×D4—24no—
90C4×D4—24no—
91C4×D4—28no—
92#117—24no—
93#117—21no—
94#117—21no—
95#117—24no—
96#117D412yes—
97#117C2312yes—
98C2×C4⋊C4—22no—
99C2×C4⋊C4—24no—
100C2×C4⋊C4—21no—
101C2×C4⋊C4—21no—
102C2×C4⋊C4—21no—
103C2×C4⋊C4—21no—
104C2×C4⋊C4—24no—
105C2×C4⋊C4D412yes—
106C2×C4⋊C4D411yescharacteristic
107C2×C4⋊C4D411yescharacteristic
108C2×C4⋊C4C2312yes—
109C2×C22⋊C4—22no—
110C2×C22⋊C4—21no—
111C2×C42—22no—
112C2×C42—21no—
113C2×C42—22no—
114C2×C42—22no—
115C2×C42—21no—
116C2×C42C2312yes—
117#104—28no—
118#103—24no—
119#103—24no—
120#95—28no—
121C24—21no—
122C24C2×D411yescharacteristic
123#41—24no—
124#41—24no—
125#41—24no—
126#41—24no—
127#41—24no—
128#41—22no—
129#41—22no—
130#41C22⋊C418yes—
131#41C22×C414yes—
132#41C2×D414yes—
133C2×Q8—24no—
134C2×Q8—21no—
135C2×Q8—22no—
136C2×Q8—22no—
137C2×Q8—24no—
138C2×Q8—24no—
139C2×Q8—24no—
140C2×Q8—24no—
141C2×Q8—22no—
142C2×Q8—22no—
143C2×Q8—22no—
144C2×Q8—22no—
145C2×Q8—41no—
146C2×Q8—41no—
147C2×Q8—42no—
148C2×Q8—42no—
149C2×Q8—42no—
150C2×Q8—42no—
151C2×Q8—42no—
152C2×Q8C22⋊C414yes—
153C2×Q8C22×C414yescomplemented
154C2×Q8C2×D412yes—
155C2×D4—24no—
156C2×D4—22no—
157C2×D4—24no—
158C2×D4—22no—
159C2×D4—21no—
160C2×D4—22no—
161C2×D4C22⋊C414yes—
162C2×D4C2×D412yes—
163C22×C4—21no—
164C22×C4—24no—
165C22×C4—22no—
166C22×C4—24no—
167C22×C4—22no—
168C22×C4—24no—
169C22×C4—24no—
170C22×C4—21no—
171C22×C4—22no—
172C22×C4—21no—
173C22×C4—22no—
174C22×C4—22no—
175C22×C4—28no—
176C22×C4—22no—
177C22×C4—42no—
178C22×C4—41no—
179C22×C4—41no—
180C22×C4—42no—
181C22×C4—42no—
182C22×C4—44no—
183C22×C4—84no—
184C22×C4C22×C412yes—
185C22×C4C2×D414yes—
186C22×C4C2×D411yescharacteristic
187C22×C4C2×D411yescharacteristic
188C22×C4C2×D412yes—
189C22×C4C2×D411yescharacteristic
190C22×C4C2×D411yescharacteristic
191C22×C4C2×D411yescharacteristic
192C22×C4#4112yes—
193C22×C4#4112yes—
194C22×C4C2411yescharacteristic
195Q16—216no—
196SD16—216no—
197M16—24no—
198M16—22no—
199M16—22no—
200M16—22no—
201M16—42no—
202M16C22×C414yescomplemented
203C2×C8—24no—
204C2×C8—22no—
205C2×C8—22no—
206C2×C8—42no—
207C4⋊C4—28no—
208C4⋊C4—22no—
209C4⋊C4—21no—
210C4⋊C4—22no—
211C4⋊C4—21no—
212C4⋊C4—22no—
213C4⋊C4—22no—
214C4⋊C4C2×D412yes—
215C4⋊C4C2×D412yes—
216C22⋊C4—28no—
217C22⋊C4—22no—
218C22⋊C4—22no—
219C42—28no—
220C42—22no—
221C42—22no—
222C42—22no—
223C42—22no—
224C42—42no—
225C23—22no—
226C23—22no—
227C23—22no—
228C23—24no—
229C23—42no—
230C23—42no—
231C23C4×D412yes—
232C23#12011yescharacteristic
233C23#12011yescharacteristic
234C23#12112yes—
235C23C22×D411yescharacteristic
236Q8—22no—
237Q8—24no—
238Q8—24no—
239Q8—24no—
240Q8—42no—
241Q8—42no—
242Q8—44no—
243Q8—44no—
244Q8C2×C22⋊C414yes—
245D4—24no—
246D4—24no—
247D4—28no—
248D4—22no—
249D4—24no—
250D4C2×C22⋊C414yes—
251C2×C4—22no—
252C2×C4—24no—
253C2×C4—24no—
254C2×C4—24no—
255C2×C4—28no—
256C2×C4—24no—
257C2×C4—24no—
258C2×C4—22no—
259C2×C4—24no—
260C2×C4—22no—
261C2×C4—48no—
262C2×C4—42no—
263C2×C4—42no—
264C2×C4—42no—
265C2×C4—42no—
266C2×C4—44no—
267C2×C4—44no—
268C2×C4—44no—
269C2×C4—42no—
270C2×C4—42no—
271C2×C4—44no—
272C2×C4—82no—
273C2×C4—88no—
274C2×C4C2×C22⋊C412yes—
275C2×C4C2×C22⋊C412yes—
276C2×C4C4×D412yes—
277C2×C4C4×D412yes—
278C2×C4C4×D412yes—
279C2×C4#12011yescharacteristic
280C2×C4#12011yescharacteristic
281C2×C4#12112yes—
282C2×C4#12112yes—
283C2×C4#12112yes—
284C2×C4#12312yes—
285C2×C4#12312yes—
286C2×C4C23×C411yescharacteristic
287C2×C4C22×D411yescharacteristic
288C2×C4C22×D411yescharacteristic
289C2×C4C22×D411yescharacteristic
290C2×C4C2×#4111yescharacteristic
291C2×C4C2×#4111yescharacteristic
292C8—24no—
293C8—42no—
294C22—24no—
295C22—24no—
296C22—21no—
297C22—21no—
298C22—21no—
299C22—21no—
300C22—24no—
301C22—48no—
302C22—42no—
303C22—42no—
304C22#38612yes—
305C22#38612yes—
306C22#45512yes—
307C22#45612yes—
308C22C2×C4×D411yescharacteristic
309C22C2×#12011yescharacteristic
310C22C2×#12111yescharacteristic
311C4—24no—
312C4—44no—
313C4—44no—
314C4—42no—
315C4—42no—
316C4—44no—
317C4#38612yes—
318C4#38612yes—
319C4C22×C22⋊C411yescharacteristic
320C4C2×C4×D411yescharacteristic
321C4C2×#12111yescharacteristic
322C4C2×#12311yescharacteristic
323C2—21no—
324C2—21no—
325C2—22no—
326C2—44no—
327C2#188214yesdirect product factor
328C2C2×#38611yescharacteristic
329C2C2×#45511yescharacteristic
330C2C2×#45611yescharacteristic
subgroupG/H
center, socleC23#120
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

Complements

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

NH ≅ G/Ntype
4. C2×#419C2semidirect
5. C2×#391C2semidirect
6. #1882C2direct (N × H)
7. C2×#343C2semidirect
8. C2×#339C2semidirect
13. C2×#137C4semidirect
34. #419C22semidirect
38. #391C22semidirect
40. #343C22semidirect
41. #339C22semidirect
58. C22×Q8C2×C4semidirect
71. #137C2×C4semidirect
81. C2×M16C2×C4semidirect
153. C2×Q8C22×C4semidirect
202. M16C22×C4semidirect
327. C2#1882direct (N × H)

Maximal subgroups

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

subgroupindex
C22×#1372
C2×#5202
C22×#1042
C2×#4192
C2×#3912
#18822
C2×#3432
C2×#3392