Subgroups — C₂×#22551689 #30657857

Order 16448.

90 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	#22551689	C₂	1	4	yes	maximal, direct product factor
2	C₂×#16861630	C₂	1	2	yes	maximal, complemented
3	C₂×#16861626	C₂	1	1	yes	maximal, characteristic
4	#16861630	C₂²	1	4	yes	complemented
5	#16861626	C₄	1	2	yes	—
6	#16861626	C₂²	1	2	yes	—
7	C₂×#14523346	C₄	1	1	yes	characteristic
8	C₂×#14523346	C₂²	1	1	yes	characteristic
9	C₂×C₄×D₂₅₇	C₄	1	1	yes	characteristic
10	#14523346	C₂×C₄	1	2	yes	—
11	#14523346	C₂×C₄	1	1	yes	characteristic
12	#14523346	C₂³	1	1	yes	characteristic
13	C₂²×D₂₅₇	C₈	1	1	yes	characteristic
14	C₂×Dic₂₅₇	C₂×C₄	1	1	yes	characteristic
15	C₄×D₂₅₇	C₈	1	2	yes	—
16	C₄×D₂₅₇	C₂×C₄	1	2	yes	—
17	C₂×C₄×C₂₅₇	C₈	1	1	yes	characteristic
18	C₂²×C₂₅₇	C₂×C₈	1	1	yes	characteristic
19	C₂×D₂₅₇	—	2	2	no	—
20	C₂×D₂₅₇	C₂×C₈	1	2	yes	—
21	C₄×C₂₅₇	C₂×C₈	1	2	yes	—
22	Dic₂₅₇	C₂×C₈	1	1	yes	characteristic
23	Dic₂₅₇	C₂²×C₄	1	1	yes	characteristic
24	C₂×C₂₅₇	M₃₂	1	2	yes	complemented
25	C₂×C₂₅₇	C₂²×C₈	1	1	yes	characteristic
26	D₂₅₇	—	2	2	no	—
27	C₂₅₇	C₂×M₃₂	1	1	yes	characteristic, complemented, Sylow
28	C₂×M₃₂	—	257	1	no	maximal, Sylow
29	C₂²×C₈	—	257	1	no	—
30	M₃₂	—	257	4	no	—
31	C₂×C₁₆	—	257	2	no	—
32	C₂²×C₄	—	257	1	no	—
33	C₂×C₈	—	257	1	no	—
34	C₂×C₈	—	257	2	no	—
35	C₂×C₈	—	257	1	no	—
36	C₂×C₈	—	257	2	no	—
37	C₁₆	—	257	4	no	—
38	C₂³	—	257	1	no	—
39	C₂×C₄	—	257	1	no	—
40	C₂×C₄	—	257	2	no	—
41	C₂×C₄	—	257	2	no	—
42	C₂×C₄	#14523348	1	1	yes	characteristic
43	C₈	—	257	1	no	—
44	C₈	—	257	1	no	—
45	C₈	—	257	2	no	—
46	C₂²	—	257	2	no	—
47	C₂²	—	514	2	no	—
48	C₂²	C₂×#14523348	1	1	yes	characteristic
49	C₄	—	257	1	no	—
50	C₄	—	257	1	no	—
51	C₄	C₂×#14523348	1	2	yes	—
52	C₂	—	514	2	no	—
53	C₂	#22551689	1	2	yes	direct product factor
54	C₂	C₂²×#14523348	1	1	yes	characteristic

	subgroup	G/H
center	C₂²	C₂×#14523348
commutator	C₂×C₂₅₇	C₂²×C₈
Frattini	C₂	C₂²×#14523348
Fitting	C₂×C₄×C₂₅₇	C₈
socle	C₂²×C₂₅₇	C₂×C₈
prime radical	C₂²×D₂₅₇	C₈
cosocle	#14523346	C₂³
hypercenter	C₂×C₄	#14523348
hypocenter	C₂₅₇	C₂×M₃₂
LCS	G ▷ C₂×C₂₅₇ ▷ C₂₅₇
UCS	C₁ ◁ C₂² ◁ C₂×C₄

Complements

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

N	H ≅ G/N	type
1. #22551689	C₂	direct (N × H)
2. C₂×#16861630	C₂	semidirect
4. #16861630	C₂²	semidirect
24. C₂×C₂₅₇	M₃₂	semidirect
27. C₂₅₇	C₂×M₃₂	semidirect
53. C₂	#22551689	direct (N × H)

Maximal subgroups

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

subgroup	index
#22551689	2
C₂×#16861630	2
C₂×#16861626	2
C₂×M₃₂	257

Subgroups — C2×#22551689 #30657857

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₂×#22551689 #30657857