Finite Group Databasebeta

← C2×#1861 #20866

Subgroups — C2×#1861 #20866

Order 256.

679 conjugacy classes of subgroups.

The subgroup lattice has 327 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C2×#568C211yesmaximal, characteristic
2C2×#430C211yesmaximal, characteristic, complemented
3C2×#423C211yesmaximal, characteristic, complemented
4C2×#421C211yesmaximal, characteristic
5C22×#104C211yesmaximal, characteristic
6#1861C218yesmaximal, direct product factor
7C2×#344C211yesmaximal, characteristic, complemented
8C2×#339C211yesmaximal, characteristic, complemented
9C22×#41C2211yescharacteristic
10#568—22no—
11#568—22no—
12#568—22no—
13#568C2214yes—
14C2×#131—22no—
15C2×#131—22no—
16C22×M16—22no—
17C22×M16C2211yescharacteristic
18C22×M16C2211yescharacteristic
19C22×M16C2211yescharacteristic
20C22×M16C2211yescharacteristic
21C2×#117C2211yescharacteristic
22C22×C42C2211yescharacteristic
23#430—22no—
24#430C2214yescomplemented
25C2×#108—22no—
26#423—22no—
27#423C2214yescomplemented
28C2×C4⋊C8—22no—
29#421—22no—
30#421C2214yes—
31C2×#104—22no—
32C2×#104C412yescomplemented
33C2×#104C414yescomplemented
34C2×#104C412yescomplemented
35C2×#104C2214yes—
36#344C2214yescomplemented
37#339C2214yescomplemented
38C2×#41—21no—
39C2×#41—21no—
40C2×#41—21no—
41C2×#41—21no—
42C2×#41—21no—
43C2×#41—21no—
44C2×#41C2×C412yes—
45C2×#41C2×C412yes—
46C2×#41D412yes—
47C2×#41D412yes—
48C2×#41Q812yes—
49C2×#41C2312yes—
50C22×Q8Q811yescharacteristic
51C22×D4—21no—
52C22×D4Q811yescharacteristic
53C23×C4—21no—
54C23×C4—21no—
55C23×C4C2311yescharacteristic
56#131—28no—
57#131—28no—
58#131—28no—
59#131—28no—
60C2×M16—24no—
61C2×M16—28no—
62C2×M16—21no—
63C2×M16—21no—
64C2×M16—21no—
65C2×M16—21no—
66C2×M16—21no—
67C2×M16—21no—
68C2×M16—21no—
69C2×M16—21no—
70C2×M16—21no—
71C2×M16—21no—
72C2×M16—28no—
73C2×M16—21no—
74C2×M16—21no—
75C2×M16—21no—
76C2×M16—21no—
77C2×M16—21no—
78C2×M16C2×C412yes—
79C2×M16C2×C412yes—
80C2×M16D412yes—
81C2×M16D412yes—
82C2×M16D412yes—
83C2×M16C2312yes—
84C2×M16C2312yes—
85C2×M16C2312yes—
86C2×M16C2312yes—
87C22×C8—24no—
88C22×C8—21no—
89C22×C8—21no—
90C22×C8—21no—
91C22×C8D412yes—
92#117—21no—
93#117—21no—
94#117—21no—
95#117C2312yes—
96C2×C4⋊C4—21no—
97C2×C22⋊C4—21no—
98C2×C42—21no—
99C2×C42—21no—
100C2×C42—21no—
101C2×C42—21no—
102C2×C42C2×C411yescharacteristic
103C2×C42C2×C412yes—
104C2×C42C2×C411yescharacteristic
105C2×C42C2312yes—
106#108—28no—
107C4⋊C8—28no—
108#104—28no—
109#104C2×C418yescomplemented
110#104C2×C418yescomplemented
111C24—21no—
112C24#4111yescharacteristic
113#41—22no—
114#41—22no—
115#41—22no—
116#41—22no—
117#41—22no—
118#41—22no—
119#41—22no—
120#41—22no—
121#41—22no—
122#41—22no—
123#41—22no—
124#41—22no—
125#41C4⋊C414yes—
126#41C4⋊C414yes—
127#41C22×C414yes—
128#41C2×D414yes—
129C2×Q8—21no—
130C2×Q8—21no—
131C2×Q8—21no—
132C2×Q8C4⋊C412yes—
133C2×Q8C4⋊C412yes—
134C2×Q8C2×Q812yes—
135C2×D4—22no—
136C2×D4—22no—
137C2×D4—22no—
138C2×D4—22no—
139C2×D4—22no—
140C2×D4—22no—
141C2×D4—21no—
142C2×D4—21no—
143C2×D4—21no—
144C2×D4C4⋊C412yes—
145C2×D4C4⋊C412yes—
146C2×D4C2×Q812yes—
147C22×C4—21no—
148C22×C4—21no—
149C22×C4—22no—
150C22×C4—22no—
151C22×C4—22no—
152C22×C4—22no—
153C22×C4—22no—
154C22×C4—22no—
155C22×C4—22no—
156C22×C4—21no—
157C22×C4—22no—
158C22×C4—44no—
159C22×C4—41no—
160C22×C4C22×C411yescharacteristic
161C22×C4C22×C411yescharacteristic
162C22×C4C2×D411yescharacteristic
163C22×C4C2×D411yescharacteristic
164C22×C4C2×D411yescharacteristic
165C22×C4C2×D411yescharacteristic
166C22×C4C2×D411yescharacteristic
167C22×C4C2×D411yescharacteristic
168C22×C4C2×Q811yescharacteristic
169C22×C4C2×Q811yescharacteristic
170C22×C4#4111yescharacteristic
171C22×C4#4111yescharacteristic
172C22×C4#4111yescharacteristic
173C22×C4C2411yescharacteristic
174M16—216no—
175M16—22no—
176M16—22no—
177M16—22no—
178M16—22no—
179M16—22no—
180M16—22no—
181M16—22no—
182M16—22no—
183M16—22no—
184M16—22no—
185M16—22no—
186M16—22no—
187M16—41no—
188M16—41no—
189M16C22×C414yes—
190M16C2×D414yes—
191C2×C8—216no—
192C2×C8—22no—
193C2×C8—22no—
194C2×C8—22no—
195C2×C8—22no—
196C2×C8—22no—
197C2×C8—22no—
198C2×C8—22no—
199C2×C8—22no—
200C2×C8—22no—
201C2×C8—41no—
202C2×C8—41no—
203C2×C8C2×D414yes—
204C4⋊C4—22no—
205C4⋊C4—41no—
206C22⋊C4—22no—
207C22⋊C4—41no—
208C42—21no—
209C42—22no—
210C42—21no—
211C42—22no—
212C42—22no—
213C42—41no—
214C42C22×C412yes—
215C42C22×C412yes—
216C23—22no—
217C23—22no—
218C23—22no—
219C23—42no—
220C23—82no—
221C23C4×D411yescharacteristic
222C23C4×D411yescharacteristic
223C23C22⋊Q811yescharacteristic
224C23C22⋊Q811yescharacteristic
225C23#12311yescharacteristic
226C23#12311yescharacteristic
227C23C2×#4111yescharacteristic
228Q8—22no—
229Q8—22no—
230Q8—22no—
231Q8C2×C4⋊C414yes—
232D4—24no—
233D4—24no—
234D4—24no—
235D4—24no—
236D4—22no—
237D4—22no—
238D4—22no—
239D4C2×C4⋊C414yes—
240C2×C4—24no—
241C2×C4—22no—
242C2×C4—22no—
243C2×C4—22no—
244C2×C4—22no—
245C2×C4—24no—
246C2×C4—24no—
247C2×C4—24no—
248C2×C4—24no—
249C2×C4—22no—
250C2×C4—44no—
251C2×C4—44no—
252C2×C4—42no—
253C2×C4—42no—
254C2×C4—82no—
255C2×C4C2×C4⋊C411yescharacteristic
256C2×C4C2×C4⋊C411yescharacteristic
257C2×C4C2×C4⋊C411yescharacteristic
258C2×C4C2×C4⋊C411yescharacteristic
259C2×C4C4×D411yescharacteristic
260C2×C4C4×D411yescharacteristic
261C2×C4C4×D411yescharacteristic
262C2×C4C4×D411yescharacteristic
263C2×C4C4×D411yescharacteristic
264C2×C4C4×D411yescharacteristic
265C2×C4#12011yescharacteristic
266C2×C4#12011yescharacteristic
267C2×C4#12011yescharacteristic
268C2×C4#12011yescharacteristic
269C2×C4C22⋊Q811yescharacteristic
270C2×C4C22⋊Q811yescharacteristic
271C2×C4C22⋊Q811yescharacteristic
272C2×C4C22⋊Q811yescharacteristic
273C2×C4C22⋊Q811yescharacteristic
274C2×C4C22⋊Q811yescharacteristic
275C2×C4#12311yescharacteristic
276C2×C4#12311yescharacteristic
277C2×C4C23×C411yescharacteristic
278C2×C4C22×D411yescharacteristic
279C2×C4C22×D411yescharacteristic
280C2×C4C22×D411yescharacteristic
281C2×C4C22×Q811yescharacteristic
282C2×C4C2×#4111yescharacteristic
283C8—24no—
284C8—24no—
285C8—24no—
286C8—42no—
287C22—22no—
288C22—22no—
289C22—22no—
290C22—24no—
291C22—41no—
292C22—41no—
293C22—41no—
294C22—41no—
295C22—44no—
296C22—82no—
297C22—82no—
298C22#38511yescharacteristic
299C22#38511yescharacteristic
300C22#38511yescharacteristic
301C22#38511yescharacteristic
302C22C2×C4×D411yescharacteristic
303C22C2×C22⋊Q811yescharacteristic
304C22C2×#12311yescharacteristic
305C4—24no—
306C4—24no—
307C4—42no—
308C4—82no—
309C4#38511yescharacteristic
310C4#38511yescharacteristic
311C4#38511yescharacteristic
312C4#38511yescharacteristic
313C4C22×C4⋊C411yescharacteristic
314C4C2×C4×D411yescharacteristic
315C4C2×#12011yescharacteristic
316C4C2×C22⋊Q811yescharacteristic
317C2—21no—
318C2—21no—
319C2—21no—
320C2—21no—
321C2—21no—
322C2—21no—
323C2—44no—
324C2#186112yesdirect product factor
325C2C2×#38511yescharacteristic
subgroupG/H
centerC2×C4#120
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC22#385
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

Complements

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

NH ≅ G/Ntype
2. C2×#430C2semidirect
3. C2×#423C2semidirect
6. #1861C2direct (N × H)
7. C2×#344C2semidirect
8. C2×#339C2semidirect
24. #430C22semidirect
27. #423C22semidirect
32. C2×#104C4semidirect
33. C2×#104C4semidirect
34. C2×#104C4semidirect
36. #344C22semidirect
37. #339C22semidirect
109. #104C2×C4semidirect
110. #104C2×C4semidirect
324. C2#1861direct (N × H)

Maximal subgroups

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

subgroupindex
C2×#5682
C2×#4302
C2×#4232
C2×#4212
C22×#1042
#18612
C2×#3442
C2×#3392