Finite Group Databasebeta

← Q8×D9 #3700

Subgroups — Q8×D9 #3700

Order 144.

57 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#subgroupG/Hclass sizemultiplicitynormal?properties
1Q8×C9C211yesmaximal, characteristic, complemented
2C4×D9C213yesmaximal
3Dic18C213yesmaximal, complemented
4D3×Q8—31nomaximal
5C2×D9C2211yescharacteristic
6C4×C9C2213yes—
7Dic9C2213yes—
8C3×Q8D311yescharacteristic
9C4×D3—33no—
10Dic6—33no—
11C2×C9C2311yescharacteristic
12D9Q812yesdirect product factor
13C2×Q8—91noSylow
14C2×D3—31no—
15C3×C4C2×D313yes—
16Dic3—33no—
17C9C2×Q811yescharacteristic, complemented, Sylow
18Q8—93no—
19Q8D911yescharacteristic, direct product factor
20C2×C4—93no—
21C2×C3C22×D311yescharacteristic
22D3—32no—
23C22—91no—
24C4—93no—
25C4C2×D913yes—
26C3D3×Q811yescharacteristic
27C2—92no—
28C2C22×D911yescharacteristic
subgroupG/H
centerC2C22×D9
commutator, cosocleC2×C9C23
Frattini, socleC2×C3C22×D3
FittingQ8×C9C2
prime radicalC2×D9C22
hypercenterQ8D9
hypocenterC9C2×Q8
LCSG ▷ C2×C9 ▷ C9
UCSC1 ◁ C2 ◁ Q8

Complements

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

NH ≅ G/Ntype
1. Q8×C9C2semidirect
3. Dic18C2semidirect
12. D9Q8direct (N × H)
17. C9C2×Q8semidirect
19. Q8D9direct (N × H)

Maximal subgroups

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

subgroupindex
Q8×C92
C4×D92
Dic182
D3×Q83