Subgroups — C₄×D₂₀ #4019

Order 160.

94 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	C₂×D₂₀	C₂	1	1	yes	maximal, characteristic
2	C₂×C₄×D₅	C₂	1	2	yes	maximal, complemented
3	C₄²×C₅	C₂	1	1	yes	maximal, characteristic, complemented
4	#685	C₂	1	2	yes	maximal, complemented
5	C₄⋊Dic₅	C₂	1	1	yes	maximal, characteristic, complemented
6	C₂²×D₅	C₂²	1	2	yes	—
7	C₂×C₄×C₅	C₂²	1	1	yes	characteristic
8	C₂×C₄×C₅	C₂²	1	1	yes	characteristic
9	C₂×C₄×C₅	C₂²	1	1	yes	characteristic
10	C₂×Dic₅	C₂²	1	2	yes	—
11	D₂₀	C₄	1	4	yes	direct product factor
12	C₄×D₅	—	2	4	no	—
13	C₄×D₄	—	5	1	no	maximal, Sylow
14	C₂²×C₅	C₂³	1	1	yes	characteristic
15	C₂×D₅	—	2	2	no	—
16	C₂×D₅	—	2	2	no	—
17	C₂×D₅	C₂×C₄	1	4	yes	complemented
18	C₄×C₅	—	2	1	no	—
19	C₄×C₅	C₂×C₄	1	2	yes	complemented
20	C₄×C₅	D₄	1	2	yes	complemented
21	Dic₅	—	2	2	no	—
22	C₂×D₄	—	5	1	no	—
23	C₂²×C₄	—	5	2	no	—
24	C₄⋊C₄	—	5	1	no	—
25	C₂²⋊C₄	—	5	2	no	—
26	C₄²	D₅	1	1	yes	characteristic, complemented
27	C₂×C₅	C₂²×C₄	1	1	yes	characteristic
28	C₂×C₅	C₂×D₄	1	1	yes	characteristic
29	C₂×C₅	#41	1	1	yes	characteristic
30	D₅	—	2	4	no	—
31	C₂³	—	5	2	no	—
32	D₄	—	5	4	no	—
33	C₂×C₄	—	5	2	no	—
34	C₂×C₄	—	10	4	no	—
35	C₂×C₄	C₂×D₅	1	1	yes	characteristic
36	C₂×C₄	C₂×D₅	1	1	yes	characteristic
37	C₂×C₄	C₂×D₅	1	1	yes	characteristic
38	C₅	C₄×D₄	1	1	yes	characteristic, complemented, Sylow
39	C₂²	—	5	4	no	—
40	C₂²	—	10	2	no	—
41	C₂²	—	10	2	no	—
42	C₂²	C₂²×D₅	1	1	yes	characteristic
43	C₄	—	2	1	no	—
44	C₄	—	10	2	no	—
45	C₄	C₄×D₅	1	2	yes	complemented
46	C₄	D₂₀	1	2	yes	direct product factor
47	C₂	—	10	4	no	—
48	C₂	C₂×C₄×D₅	1	1	yes	characteristic
49	C₂	C₂×D₂₀	1	1	yes	characteristic
50	C₂	#709	1	1	yes	characteristic

	subgroup	G/H
center	C₂×C₄	C₂×D₅
commutator	C₂×C₅	C₂²×C₄
Frattini	C₂²	C₂²×D₅
Fitting	C₄²×C₅	C₂
socle, cosocle	C₂²×C₅	C₂³
prime radical	C₂×D₂₀	C₂
hypercenter	C₄²	D₅
hypocenter	C₅	C₄×D₄
LCS	G ▷ C₂×C₅ ▷ C₅
UCS	C₁ ◁ C₂×C₄ ◁ C₄²

Complements

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

N	H ≅ G/N	type
2. C₂×C₄×D₅	C₂	semidirect
3. C₄²×C₅	C₂	semidirect
4. #685	C₂	semidirect
5. C₄⋊Dic₅	C₂	semidirect
11. D₂₀	C₄	direct (N × H)
17. C₂×D₅	C₂×C₄	semidirect
19. C₄×C₅	C₂×C₄	semidirect
20. C₄×C₅	D₄	semidirect
26. C₄²	D₅	semidirect
38. C₅	C₄×D₄	semidirect
45. C₄	C₄×D₅	semidirect
46. C₄	D₂₀	direct (N × H)

Maximal subgroups

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

subgroup	index
C₂×D₂₀	2
C₂×C₄×D₅	2
C₄²×C₅	2
#685	2
C₄⋊Dic₅	2
C₄×D₄	5

Subgroups — C4×D20 #4019

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₄×D₂₀ #4019