Finite Group Databasebeta

← C2×#1655 #18978

Subgroups — C2×#1655 #18978

Order 256.

665 conjugacy classes of subgroups; only the 119 normal subgroups are shown.

normal subgroups only

This group has 665 conjugacy classes of subgroups — too many to draw. Only its 119 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×H(3,𝔽4)C211yesmaximal, characteristic, complemented
2C2×#496C213yesmaximal, complemented
3#1655C218yesmaximal, direct product factor
4C2×#329C213yesmaximal, complemented
5C22×SD16—23no—
6C22×D8—23no—
7H(3,𝔽4)—26no—
8H(3,𝔽4)C2214yescomplemented
9C2×#127C2211yescharacteristic, complemented
10C2×#124—23no—
11C2×#124C2213yes—
12C2×#120—23no—
13#496—26no—
14#496C22112yescomplemented
15C2×#97C2213yescomplemented
16#329C22112yescomplemented
17C25—21no—
18C22×Q8D413yes—
19C22×D4—23no—
20C22×D4—23no—
21C22×D4D413yes—
22C2×SD16—212no—
23C2×SD16—412no—
24C2×D8—212no—
25C2×D8—412no—
26C22×C8—23no—
27#127—23no—
28#127C2312yescomplemented
29#124—212no—
30#124—212no—
31#124—26no—
32#124D416yes—
33#124C2316yes—
34#120—212no—
35#120—212no—
36C2×C22⋊C4—23no—
37C2×C22⋊C4—26no—
38C2×C42—21no—
39C2×C42C2311yescharacteristic
40#97—23no—
41#97C2316yescomplemented
42C24—24no—
43C24—23no—
44C24—41no—
45C24—86no—
46C2×Q8—23no—
47C2×Q8—46no—
48C2×Q8C2×D416yes—
49C2×D4—212no—
50C2×D4—23no—
51C2×D4—26no—
52C2×D4—46no—
53C2×D4—46no—
54C2×D4—46no—
55C2×D4—43no—
56C2×D4—86no—
57C2×D4C2×D416yes—
58C22×C4—23no—
59C22×C4C2×D413yes—
60SD16—424no—
61D8—424no—
62C2×C8—212no—
63C2×C8—26no—
64C22⋊C4—212no—
65C22⋊C4—212no—
66C22⋊C4—212no—
67C42—24no—
68C42C2×D413yes—
69C42C2411yescharacteristic
70C23—26no—
71C23—46no—
72C23—412no—
73C23—42no—
74C23—812no—
75C23—816no—
76C23—86no—
77C23#12011yescharacteristic
78Q8—46no—
79Q8—83no—
80D4—46no—
81D4—46no—
82D4—46no—
83D4—83no—
84D4—86no—
85D4—812no—
86C2×C4—26no—
87C2×C4—26no—
88C2×C4—46no—
89C2×C4#12013yes—
90C2×C4C22×D413yes—
91C8—212no—
92C22—46no—
93C22—412no—
94C22—816no—
95C22—812no—
96C22—86no—
97C22—164no—
98C22#45316yes—
99C22C2×#12011yescharacteristic
100C4—23no—
101C4—23no—
102C4—46no—
103C2—86no—
104C2—162no—
105C2#165514yesdirect product factor
106C2C2×#45313yes—
subgroupG/H
center, socleC23#120
commutator, Frattini, cosocleC42C24
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
1. C2×H(3,𝔽4)C2semidirect
2. C2×#496C2semidirect
3. #1655C2direct (N × H)
4. C2×#329C2semidirect
8. H(3,𝔽4)C22semidirect
9. C2×#127C22semidirect
14. #496C22semidirect
15. C2×#97C22semidirect
16. #329C22semidirect
28. #127C23semidirect
41. #97C23semidirect
105. C2#1655direct (N × H)

Maximal subgroups

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

subgroupindex
C2×H(3,𝔽4)2
C2×#4962
#16552
C2×#3292