Finite Group Databasebeta

← C2×#1905 #20997

Subgroups — C2×#1905 #20997

Order 256.

839 conjugacy classes of subgroups.

The subgroup lattice has 384 nodes — too large to display as a diagram.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C22×#137C211yesmaximal, characteristic
2C2×#519C211yesmaximal, characteristic, complemented
3C2×#421C211yesmaximal, characteristic
4C2×#419C211yesmaximal, characteristic, complemented
5C2×#410C211yesmaximal, characteristic
6#1905C218yesmaximal, direct product factor
7C2×#344C211yesmaximal, characteristic, complemented
8C2×H(3,ℤ/4)C211yesmaximal, characteristic, complemented
9C22×#41C2211yescharacteristic
10C23×Q8C2211yescharacteristic
11C2×#137—22no—
12C2×#137—22no—
13C2×#137—22no—
14C2×#137—22no—
15C2×#137C414yescomplemented
16C2×#137C2214yes—
17C22×Q16C412yescomplemented
18C22×SD16C412yescomplemented
19C22×M16C2211yescharacteristic
20C22×M16C2211yescharacteristic
21#519—22no—
22#519—22no—
23#519—22no—
24#519C2214yescomplemented
25C2×C4×Q8—22no—
26C2×C4×Q8—22no—
27C2×#117—22no—
28C2×#117C2211yescharacteristic
29C2×#117C2211yescharacteristic
30C2×#117C2211yescharacteristic
31#421—22no—
32#421C2214yes—
33C2×#104—22no—
34#419—22no—
35#419C2214yescomplemented
36C2×#103—22no—
37#410—22no—
38#410C2214yes—
39C2×#99—22no—
40#344C2214yescomplemented
41H(3,ℤ/4)C2214yescomplemented
42C2×#41—21no—
43C2×#41—21no—
44C2×#41—21no—
45C2×#41—21no—
46C2×#41—21no—
47C2×#41—21no—
48C2×#41—21no—
49C2×#41—21no—
50C2×#41—21no—
51C2×#41—21no—
52C2×#41C2×C412yes—
53C2×#41C2312yes—
54C22×Q8—21no—
55C22×Q8—21no—
56C22×Q8—21no—
57C22×Q8—21no—
58C22×Q8—21no—
59C22×Q8—21no—
60C22×Q8—21no—
61C22×Q8C2×C411yescharacteristic
62C22×Q8C2×C412yes—
63C22×Q8C2×C412yes—
64C22×Q8D412yes—
65C22×Q8D412yes—
66C22×Q8D412yes—
67C22×Q8D412yes—
68C22×Q8C2312yes—
69C22×D4—21no—
70C22×D4C2×C411yescharacteristic
71C23×C4—21no—
72C23×C4—21no—
73C23×C4C2311yescharacteristic
74#137—28no—
75#137—28no—
76#137—28no—
77#137—28no—
78C2×Q16—24no—
79C2×Q16—24no—
80C2×Q16C2×C418yescomplemented
81C2×SD16—24no—
82C2×SD16—24no—
83C2×SD16C2×C418yescomplemented
84C2×M16—21no—
85C2×M16—21no—
86C2×M16—21no—
87C2×M16—21no—
88C2×M16—21no—
89C2×M16—21no—
90C2×M16—21no—
91C2×M16—21no—
92C2×M16—21no—
93C2×M16C2×C412yes—
94C2×M16C2312yes—
95C2×M16C2312yes—
96C22×C8—21no—
97C22×C8C2×C412yes—
98C4×Q8—28no—
99C4×Q8—28no—
100C4×Q8—28no—
101C4×Q8—28no—
102#117—28no—
103#117—21no—
104#117—21no—
105#117—21no—
106#117—21no—
107#117—28no—
108#117—21no—
109#117—21no—
110#117—21no—
111#117D412yes—
112#117D412yes—
113#117C2312yes—
114#117C2312yes—
115#117C2312yes—
116C2×C4⋊C4—24no—
117C2×C4⋊C4—21no—
118C2×C4⋊C4—21no—
119C2×C4⋊C4—21no—
120C2×C22⋊C4—21no—
121C2×C22⋊C4—21no—
122C2×C22⋊C4D412yes—
123C2×C42—24no—
124C2×C42—21no—
125C2×C42—21no—
126C2×C42D412yes—
127#104—28no—
128#103—28no—
129#99—28no—
130C24—21no—
131C24C2×D411yescharacteristic
132#41—22no—
133#41—22no—
134#41—22no—
135#41—22no—
136#41—22no—
137#41—22no—
138#41—22no—
139#41—22no—
140#41—41no—
141#41—41no—
142#41—41no—
143#41—41no—
144#41—41no—
145#41—41no—
146#41—41no—
147#41—41no—
148C2×Q8—22no—
149C2×Q8—22no—
150C2×Q8—22no—
151C2×Q8—22no—
152C2×Q8—22no—
153C2×Q8—22no—
154C2×Q8—21no—
155C2×Q8—22no—
156C2×Q8—22no—
157C2×Q8—22no—
158C2×Q8—22no—
159C2×Q8—22no—
160C2×Q8—22no—
161C2×Q8—22no—
162C2×Q8—22no—
163C2×Q8—22no—
164C2×Q8—22no—
165C2×Q8—22no—
166C2×Q8—22no—
167C2×Q8—22no—
168C2×Q8—22no—
169C2×Q8—22no—
170C2×Q8—21no—
171C2×Q8—21no—
172C2×Q8—21no—
173C2×Q8—21no—
174C2×Q8C22⋊C414yes—
175C2×Q8C22⋊C414yes—
176C2×Q8C22⋊C414yes—
177C2×Q8C22⋊C414yes—
178C2×Q8C22×C412yes—
179C2×Q8C22×C414yes—
180C2×Q8C2×D414yes—
181C2×Q8C2×D414yes—
182C2×D4—22no—
183C2×D4—22no—
184C2×D4—21no—
185C2×D4—21no—
186C2×D4—21no—
187C2×D4—21no—
188C2×D4—21no—
189C2×D4—41no—
190C2×D4—41no—
191C2×D4—41no—
192C2×D4—41no—
193C2×D4C22×C412yes—
194C22×C4—22no—
195C22×C4—22no—
196C22×C4—22no—
197C22×C4—22no—
198C22×C4—22no—
199C22×C4—22no—
200C22×C4—22no—
201C22×C4—21no—
202C22×C4—22no—
203C22×C4—22no—
204C22×C4—22no—
205C22×C4—22no—
206C22×C4—41no—
207C22×C4—41no—
208C22×C4—41no—
209C22×C4—41no—
210C22×C4—41no—
211C22×C4C22×C411yescharacteristic
212C22×C4C22×C411yescharacteristic
213C22×C4C2×D411yescharacteristic
214C22×C4C2×D411yescharacteristic
215C22×C4C2×D411yescharacteristic
216C22×C4C2×D411yescharacteristic
217C22×C4C2×D411yescharacteristic
218C22×C4C2×D411yescharacteristic
219C22×C4C2×D411yescharacteristic
220C22×C4#4111yescharacteristic
221C22×C4#4111yescharacteristic
222C22×C4#4111yescharacteristic
223C22×C4#4111yescharacteristic
224C22×C4C2411yescharacteristic
225Q16—216no—
226SD16—216no—
227M16—22no—
228M16—22no—
229M16—22no—
230M16—22no—
231M16—22no—
232M16—22no—
233M16—41no—
234M16—41no—
235C2×C8—22no—
236C2×C8—22no—
237C2×C8—22no—
238C2×C8—41no—
239C2×C8—41no—
240C2×C8C22×C414yes—
241C4⋊C4—216no—
242C4⋊C4—22no—
243C4⋊C4—22no—
244C4⋊C4—22no—
245C4⋊C4—22no—
246C4⋊C4—22no—
247C4⋊C4—41no—
248C22⋊C4—22no—
249C22⋊C4—22no—
250C22⋊C4—22no—
251C22⋊C4—22no—
252C22⋊C4—41no—
253C22⋊C4C2×D414yes—
254C42—216no—
255C42—22no—
256C42—22no—
257C42—22no—
258C42—22no—
259C42—41no—
260C42C2×D414yes—
261C23—22no—
262C23—42no—
263C23—41no—
264C23—41no—
265C23—82no—
266C23C4×D411yescharacteristic
267C23C4×D411yescharacteristic
268C23#12011yescharacteristic
269C23#12011yescharacteristic
270C23#12111yescharacteristic
271C23#12111yescharacteristic
272C23C22×D411yescharacteristic
273Q8—24no—
274Q8—24no—
275Q8—24no—
276Q8—24no—
277Q8—24no—
278Q8—24no—
279Q8—24no—
280Q8—22no—
281Q8—22no—
282Q8—41no—
283Q8—41no—
284Q8C2×C22⋊C418yes—
285D4—22no—
286D4—22no—
287D4—42no—
288D4—42no—
289D4—42no—
290D4—42no—
291D4—41no—
292D4—41no—
293C2×C4—24no—
294C2×C4—24no—
295C2×C4—24no—
296C2×C4—24no—
297C2×C4—24no—
298C2×C4—24no—
299C2×C4—24no—
300C2×C4—22no—
301C2×C4—24no—
302C2×C4—24no—
303C2×C4—44no—
304C2×C4—44no—
305C2×C4—41no—
306C2×C4—41no—
307C2×C4—42no—
308C2×C4—42no—
309C2×C4—42no—
310C2×C4—42no—
311C2×C4—42no—
312C2×C4—82no—
313C2×C4C2×C22⋊C411yescharacteristic
314C2×C4C2×C22⋊C411yescharacteristic
315C2×C4C2×C22⋊C411yescharacteristic
316C2×C4C2×C22⋊C411yescharacteristic
317C2×C4C4×D411yescharacteristic
318C2×C4C4×D411yescharacteristic
319C2×C4C4×D411yescharacteristic
320C2×C4C4×D411yescharacteristic
321C2×C4C4×D411yescharacteristic
322C2×C4C4×D411yescharacteristic
323C2×C4#12011yescharacteristic
324C2×C4#12011yescharacteristic
325C2×C4#12111yescharacteristic
326C2×C4#12111yescharacteristic
327C2×C4#12111yescharacteristic
328C2×C4#12111yescharacteristic
329C2×C4#12111yescharacteristic
330C2×C4#12111yescharacteristic
331C2×C4#12311yescharacteristic
332C2×C4#12311yescharacteristic
333C2×C4#12311yescharacteristic
334C2×C4#12311yescharacteristic
335C2×C4C23×C411yescharacteristic
336C2×C4C22×D411yescharacteristic
337C2×C4C22×D411yescharacteristic
338C2×C4C22×D411yescharacteristic
339C2×C4C2×#4111yescharacteristic
340C2×C4C2×#4111yescharacteristic
341C8—24no—
342C8—42no—
343C22—22no—
344C22—22no—
345C22—22no—
346C22—41no—
347C22—41no—
348C22—41no—
349C22—41no—
350C22—42no—
351C22—82no—
352C22—82no—
353C22—82no—
354C22#38611yescharacteristic
355C22#38611yescharacteristic
356C22#38611yescharacteristic
357C22#38611yescharacteristic
358C22C2×C4×D411yescharacteristic
359C22C2×#12011yescharacteristic
360C22C2×#12111yescharacteristic
361C4—28no—
362C4—44no—
363C4—44no—
364C4—42no—
365C4—82no—
366C4#38611yescharacteristic
367C4#38611yescharacteristic
368C4#38611yescharacteristic
369C4#38611yescharacteristic
370C4C22×C22⋊C411yescharacteristic
371C4C2×C4×D411yescharacteristic
372C4C2×#12111yescharacteristic
373C4C2×#12311yescharacteristic
374C2—21no—
375C2—21no—
376C2—21no—
377C2—21no—
378C2—21no—
379C2—21no—
380C2—82no—
381C2#190512yesdirect product factor
382C2C2×#38611yescharacteristic
subgroupG/H
center, socleC22#386
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

Complements

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

NH ≅ G/Ntype
2. C2×#519C2semidirect
4. C2×#419C2semidirect
6. #1905C2direct (N × H)
7. C2×#344C2semidirect
8. C2×H(3,ℤ/4)C2semidirect
15. C2×#137C4semidirect
17. C22×Q16C4semidirect
18. C22×SD16C4semidirect
24. #519C22semidirect
35. #419C22semidirect
40. #344C22semidirect
41. H(3,ℤ/4)C22semidirect
80. C2×Q16C2×C4semidirect
83. C2×SD16C2×C4semidirect
381. C2#1905direct (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×#5192
C2×#4212
C2×#4192
C2×#4102
#19052
C2×#3442
C2×H(3,ℤ/4)2