Finite Group Databasebeta

← C2×D9⋊C9 #66372

Subgroups — C2×D9⋊C9 #66372

Order 324.

53 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C2×C9⋊C9C211yesmaximal, characteristic, complemented
2D9⋊C9C212yesmaximal, direct product factor
3C2×D3×C9—31nomaximal
4C2×C3×D9C311yesmaximal, characteristic
5C9⋊C9C2211yescharacteristic, complemented, Sylow
6C2×C3×C9—21no—
7C2×C3×C9D311yescharacteristic
8C2×C3×C9C2×C311yescharacteristic
9D3×C9—32no—
10C3×D9C2×C312yes—
11C2×C3×D3—31no—
12C22×C9—91no—
13C2×D9C911yescharacteristic, complemented
14C3×C9—21no—
15C3×C9C2×D311yescharacteristic
16C3×C9C22×C311yescharacteristic
17C2×C32C3×D311yescharacteristic
18C3×D3—32no—
19C2×C9—21no—
20C2×C9—31no—
21C2×C9—61no—
22C2×C9—92no—
23C2×C9C2×C911yescharacteristic, complemented
24D9C2×C912yescomplemented
25C22×C3—91no—
26C2×D3—31no—
27C32C2×C3×D311yescharacteristic
28C9—21no—
29C9—31no—
30C9—61no—
31C9C22×C911yescharacteristic, complemented
32C2×C3—21no—
33C2×C3—92no—
34C2×C3D3×C911yescharacteristic
35C2×C3AGL(1,ℤ/9)11yescharacteristic
36D3—32no—
37C22—91noSylow
38C3—21no—
39C3C2×D3×C911yescharacteristic
40C3C2×AGL(1,ℤ/9)11yescharacteristic
41C2—92no—
42C2D9⋊C911yescharacteristic, direct product factor
subgroupG/H
center, hypercenterC2×C3AGL(1,ℤ/9)
commutator, hypocenterC9C22×C9
FrattiniC32C2×C3×D3
FittingC2×C9⋊C9C2
socleC2×C32C3×D3
prime radicalC2×C3×D9C3
cosocleC3×C9C22×C3
LCSG ▷ C9
UCSC1 ◁ C2×C3

Complements

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

NH ≅ G/Ntype
1. C2×C9⋊C9C2semidirect
2. D9⋊C9C2direct (N × H)
5. C9⋊C9C22semidirect
13. C2×D9C9semidirect
23. C2×C9C2×C9semidirect
24. D9C2×C9semidirect
31. C9C22×C9semidirect
42. C2D9⋊C9direct (N × H)

Maximal subgroups

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

subgroupindex
C2×C9⋊C92
D9⋊C92
C2×D3×C93
C2×C3×D93