Finite Group Databasebeta

← (C9⋊C8)⋊C9 #10619496

Subgroups — (C9⋊C8)⋊C9 #10619496

Order 648.

48 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1C4×C9⋊C9C211yesmaximal, characteristic
2C9×C3⋊C8—31nomaximal
3C3×C9⋊C8C311yesmaximal, characteristic
4C2×C9⋊C9C411yescharacteristic
5C3×C4×C9—21no—
6C3×C4×C9D311yescharacteristic
7C3×C4×C9C2×C311yescharacteristic
8C9⋊C9C811yescharacteristic, complemented, Sylow
9C3×C3⋊C8—31no—
10C8×C9—91no—
11C9⋊C8C911yescharacteristic, complemented
12C2×C3×C9—21no—
13C2×C3×C9Dic311yescharacteristic
14C2×C3×C9C3×C411yescharacteristic
15C32×C4C3×D311yescharacteristic
16C4×C9—21no—
17C4×C9—31no—
18C4×C9—61no—
19C4×C9C2×C911yescharacteristic
20C3×C9—21no—
21C3×C9C3⋊C811yescharacteristic
22C3×C9C3×C811yescharacteristic
23C3×C8—91no—
24C3⋊C8—31no—
25C2×C32C3×Dic311yescharacteristic
26C2×C9—21no—
27C2×C9—31no—
28C2×C9—61no—
29C2×C9C4×C911yescharacteristic
30C3×C4—21no—
31C3×C4D3×C911yescharacteristic
32C3×C4AGL(1,ℤ/9)11yescharacteristic
33C32C3×C3⋊C811yescharacteristic
34C9—21no—
35C9—31no—
36C9—61no—
37C9C8×C911yescharacteristic, complemented
38C8—91noSylow
39C2×C3—21no—
40C2×C3C9×Dic311yescharacteristic
41C2×C33−1+2⋊C411yescharacteristic
42C4D9⋊C911yescharacteristic
43C3—21no—
44C3C9×C3⋊C811yescharacteristic
45C33−1+2⋊C811yescharacteristic
46C2Dic9⋊C911yescharacteristic
subgroupG/H
center, hypercenterC3×C4AGL(1,ℤ/9)
commutator, hypocenterC9C8×C9
FrattiniC32×C4C3×D3
FittingC4×C9⋊C9C2
socle, prime radicalC2×C32C3×Dic3
cosocleC3×C4×C9C2×C3
LCSG ▷ C9
UCSC1 ◁ C3×C4

Complements

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

NH ≅ G/Ntype
8. C9⋊C9C8semidirect
11. C9⋊C8C9semidirect
37. C9C8×C9semidirect

Maximal subgroups

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

subgroupindex
C4×C9⋊C92
C9×C3⋊C83
C3×C9⋊C83