Finite Group Databasebeta

← C2×#1640 #18484

Subgroups — C2×#1640 #18484

Order 256.

521 conjugacy classes of subgroups; only the 135 normal subgroups are shown.

normal subgroups only

This group has 521 conjugacy classes of subgroups — too many to draw. Only its 135 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
1C2×#559C211yesmaximal, characteristic
2C2×#486C211yesmaximal, characteristic
3C2×#475C211yesmaximal, characteristic, complemented
4C2×#462C211yesmaximal, characteristic, complemented
5#1640C218yesmaximal, direct product factor
6C2×#331C211yesmaximal, characteristic
7C2×Q8⋊C8C211yesmaximal, characteristic, complemented
8C2×Q8⋊C8C211yesmaximal, characteristic, complemented
9C22×Q16—21no—
10#559—22no—
11#559—22no—
12#559—22no—
13#559C2214yes—
14C2×C4⋊Q8C2211yescharacteristic
15C2×#127C2211yescharacteristic
16C2×#124—21no—
17C2×#124—21no—
18C2×#123—22no—
19C2×C4×Q8C2211yescharacteristic
20C2×C4×Q8C2211yescharacteristic
21C2×C4×D4—21no—
22C2×C4×D4—21no—
23#486—22no—
24#486C2214yes—
25#475—22no—
26#475C2214yescomplemented
27#462—22no—
28#462C2214yescomplemented
29C2×#106—21no—
30C2×C4⋊C8C2211yescharacteristic
31C2×C4⋊C8C2211yescharacteristic
32C2×#103—21no—
33C2×#103—21no—
34C2×#102—22no—
35C2×C4×C8C2211yescharacteristic
36#331C2214yes—
37Q8⋊C8C2214yescomplemented
38Q8⋊C8C2214yescomplemented
39C22×Q8—21no—
40C22×Q8D411yescharacteristic
41C22×Q8D411yescharacteristic
42C22×D4—21no—
43C22×D4—21no—
44C22×D4D412yes—
45C23×C4—22no—
46C2×Q16—24no—
47C2×Q16—44no—
48C22×C8—21no—
49C22×C8—21no—
50C22×C8—21no—
51C4⋊Q8—21no—
52C4⋊Q8—21no—
53C4⋊Q8—21no—
54C4⋊Q8C2312yes—
55#127—21no—
56#127—21no—
57#127D412yes—
58#127C2312yes—
59#124—24no—
60#124—24no—
61#124—24no—
62#124—24no—
63#123—28no—
64#123—28no—
65C4×Q8—21no—
66C4×Q8—21no—
67C4×Q8—21no—
68C4×Q8—21no—
69C4×Q8D412yes—
70C4×Q8D412yes—
71C4×Q8C2312yes—
72C4×Q8C2312yes—
73C4×D4—24no—
74C4×D4—24no—
75C4×D4—24no—
76C4×D4—24no—
77C2×C4⋊C4—21no—
78C2×C4⋊C4—21no—
79C2×C4⋊C4—21no—
80C2×C4⋊C4—21no—
81C2×C4⋊C4D411yescharacteristic
82C2×C4⋊C4D411yescharacteristic
83C2×C22⋊C4—22no—
84C2×C22⋊C4—22no—
85C2×C22⋊C4—22no—
86C2×C42—21no—
87C2×C42—21no—
88C2×C42C2311yescharacteristic
89#106—24no—
90C4⋊C8—21no—
91C4⋊C8—21no—
92C4⋊C8C2312yes—
93C4⋊C8C2312yes—
94#103—24no—
95#103—24no—
96#102—28no—
97C4×C8—21no—
98C4×C8C2312yes—
99C24—22no—
100C2×Q8—21no—
101C2×Q8—21no—
102C2×Q8—22no—
103C2×Q8—22no—
104C2×Q8—22no—
105C2×Q8—22no—
106C2×Q8—22no—
107C2×Q8—41no—
108C2×Q8—42no—
109C2×Q8—42no—
110C2×Q8C2×D412yes—
111C2×Q8C2×D412yes—
112C2×D4—22no—
113C2×D4—22no—
114C2×D4—22no—
115C2×D4—22no—
116C2×D4—22no—
117C2×D4—44no—
118C2×D4—42no—
119C2×D4—42no—
120C2×D4—42no—
121C2×D4—42no—
122C2×D4C2×D414yes—
123C22×C4—21no—
124C22×C4—21no—
125C22×C4—21no—
126C22×C4—21no—
127C22×C4—28no—
128C22×C4—41no—
129C22×C4—84no—
130C22×C4C2×D411yescharacteristic
131C22×C4C2×D411yescharacteristic
132C22×C4C2×D411yescharacteristic
133Q16—48no—
134C2×C8—22no—
135C2×C8—22no—
136C2×C8—22no—
137C2×C8—42no—
138C2×C8—42no—
139C2×C8—42no—
140C4⋊C4—22no—
141C4⋊C4—22no—
142C4⋊C4—21no—
143C4⋊C4—21no—
144C4⋊C4—22no—
145C4⋊C4—22no—
146C4⋊C4—22no—
147C4⋊C4—22no—
148C4⋊C4—41no—
149C4⋊C4—41no—
150C4⋊C4C2×D412yes—
151C4⋊C4C2×D412yes—
152C22⋊C4—28no—
153C22⋊C4—28no—
154C22⋊C4—28no—
155C42—22no—
156C42—22no—
157C42—22no—
158C42—22no—
159C42C2×D411yescharacteristic
160C42C2×D411yescharacteristic
161C42C2×D411yescharacteristic
162C42C2411yescharacteristic
163C23—24no—
164C23—44no—
165C23—44no—
166C23—44no—
167C23#12011yescharacteristic
168Q8—22no—
169Q8—22no—
170Q8—22no—
171Q8—22no—
172Q8—42no—
173Q8—42no—
174Q8—42no—
175Q8—42no—
176Q8—82no—
177D4—44no—
178D4—42no—
179D4—42no—
180D4—42no—
181D4—42no—
182D4—44no—
183D4—44no—
184D4—82no—
185C2×C4—22no—
186C2×C4—22no—
187C2×C4—22no—
188C2×C4—22no—
189C2×C4—22no—
190C2×C4—42no—
191C2×C4—42no—
192C2×C4—42no—
193C2×C4—42no—
194C2×C4—42no—
195C2×C4—88no—
196C2×C4—82no—
197C2×C4#12011yescharacteristic
198C2×C4#12011yescharacteristic
199C2×C4#12011yescharacteristic
200C2×C4#13512yes—
201C2×C4#13512yes—
202C2×C4AGL(1,ℤ/8)12yes—
203C2×C4#13712yes—
204C2×C4C22×D411yescharacteristic
205C2×C4C22×D411yescharacteristic
206C2×C4C22×D411yescharacteristic
207C8—42no—
208C8—42no—
209C8—42no—
210C22—44no—
211C22—44no—
212C22—44no—
213C22—88no—
214C22#44912yes—
215C22#45212yes—
216C22#45512yes—
217C22C2×#12011yescharacteristic
218C4—21no—
219C4—21no—
220C4—42no—
221C4—42no—
222C4—42no—
223C4—42no—
224C4—82no—
225C4#44912yes—
226C4#45212yes—
227C4C2×#13511yescharacteristic
228C4C2×#13511yescharacteristic
229C4C2×AGL(1,ℤ/8)11yescharacteristic
230C4C2×#13711yescharacteristic
231C2—84no—
232C2#164014yesdirect product factor
233C2C2×#44911yescharacteristic
234C2C2×#45211yescharacteristic
235C2C2×#45511yescharacteristic
subgroupG/H
center, socleC23#120
commutator, Frattini, cosocleC42C24
prime radicalC2×#127C22
LCSG ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C2×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

Complements

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

NH ≅ G/Ntype
3. C2×#475C2semidirect
4. C2×#462C2semidirect
5. #1640C2direct (N × H)
7. C2×Q8⋊C8C2semidirect
8. C2×Q8⋊C8C2semidirect
26. #475C22semidirect
28. #462C22semidirect
37. Q8⋊C8C22semidirect
38. Q8⋊C8C22semidirect
232. C2#1640direct (N × H)

Maximal subgroups

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

subgroupindex
C2×#5592
C2×#4862
C2×#4752
C2×#4622
#16402
C2×#3312
C2×Q8⋊C82