Subgroups — C₂×C₇×D₉ #6974

Order 252.

30 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	C₂×C₇×C₉	C₂	1	1	yes	maximal, characteristic, complemented
2	C₇×D₉	C₂	1	2	yes	maximal, direct product factor
3	C₂×D₃×C₇	—	3	1	no	maximal
4	C₇×C₉	C₂²	1	1	yes	characteristic, complemented, Hall
5	C₂×C₃×C₇	D₃	1	1	yes	characteristic
6	D₃×C₇	—	3	2	no	—
7	C₂×D₉	C₇	1	1	yes	maximal, characteristic, direct product factor, Hall
8	C₂²×C₇	—	9	1	no	Hall
9	C₃×C₇	C₂×D₃	1	1	yes	characteristic
10	C₂×C₉	C₂×C₇	1	1	yes	characteristic, complemented
11	D₉	C₂×C₇	1	2	yes	direct product factor
12	C₂×C₇	—	9	2	no	—
13	C₂×C₇	D₉	1	1	yes	characteristic, direct product factor
14	C₂×D₃	—	3	1	no	—
15	C₉	C₂²×C₇	1	1	yes	characteristic, complemented, Sylow
16	C₇	C₂×D₉	1	1	yes	characteristic, direct product factor, Sylow
17	C₂×C₃	D₃×C₇	1	1	yes	characteristic
18	D₃	—	3	2	no	—
19	C₂²	—	9	1	no	Sylow
20	C₃	C₂×D₃×C₇	1	1	yes	characteristic
21	C₂	—	9	2	no	—
22	C₂	C₇×D₉	1	1	yes	characteristic, direct product factor

	subgroup	G/H
center, hypercenter	C₂×C₇	D₉
commutator, cosocle, hypocenter	C₉	C₂²×C₇
Frattini	C₃	C₂×D₃×C₇
Fitting	C₂×C₇×C₉	C₂
socle	C₂×C₃×C₇	D₃
LCS	G ▷ C₉
UCS	C₁ ◁ C₂×C₇

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

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