Subgroups — C₂×#22551599 #30657500

Order 16448.

266 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	#22551599	C₂	1	8	yes	maximal, direct product factor
2	C₂×#16861602	C₂	1	3	yes	maximal, complemented
3	C₂²×#14523339	C₂	1	3	yes	maximal, complemented
4	C₂×#41×C₂₅₇	C₂	1	1	yes	maximal, characteristic
5	#16861602	C₂²	1	12	yes	complemented
6	C₂×#14523339	C₂²	1	1	yes	characteristic
7	C₂×#14523339	C₂²	1	3	yes	—
8	C₂×#14523339	C₂²	1	12	yes	complemented
9	#41×C₂₅₇	C₄	1	4	yes	—
10	#41×C₂₅₇	C₂²	1	4	yes	—
11	C₂×Q₈×C₂₅₇	C₄	1	1	yes	characteristic
12	C₂×D₄×C₂₅₇	C₄	1	3	yes	—
13	C₂²×C₄×C₂₅₇	C₂²	1	3	yes	—
14	#14523339	C₂³	1	2	yes	—
15	#14523339	C₂³	1	6	yes	—
16	C₂³×C₂₅₇	C₂×C₄	1	3	yes	—
17	Q₈×C₂₅₇	C₂×C₄	1	4	yes	—
18	D₄×C₂₅₇	C₂×C₄	1	12	yes	—
19	C₂×C₄×C₂₅₇	C₂×C₄	1	3	yes	—
20	C₂×C₄×C₂₅₇	C₂×C₄	1	6	yes	—
21	C₂×C₄×C₂₅₇	C₂³	1	6	yes	—
22	C₂×C₄×C₂₅₇	C₂³	1	1	yes	characteristic
23	C₂²×C₂₅₇	—	2	6	no	—
24	C₂²×C₂₅₇	C₂²×C₄	1	6	yes	—
25	C₂²×C₂₅₇	C₂²×C₄	1	1	yes	characteristic
26	C₄×C₂₅₇	C₂²×C₄	1	1	yes	characteristic
27	C₄×C₂₅₇	C₂²×C₄	1	6	yes	—
28	C₄×C₂₅₇	C₂⁴	1	1	yes	characteristic
29	C₂×C₂₅₇	—	2	6	no	—
30	C₂×C₂₅₇	#131	1	2	yes	complemented
31	C₂×C₂₅₇	C₂³×C₄	1	1	yes	characteristic
32	C₂₅₇	C₂×#131	1	1	yes	characteristic, complemented, Sylow
33	C₂×#131	—	257	1	no	maximal, Sylow
34	C₂×#41	D₂₅₇	1	1	yes	characteristic
35	#131	—	257	8	no	—
36	C₂×M₁₆	—	257	3	no	—
37	C₂²×C₈	—	257	3	no	—
38	#41	Dic₂₅₇	1	4	yes	—
39	#41	C₂×D₂₅₇	1	4	yes	—
40	C₂×Q₈	Dic₂₅₇	1	1	yes	characteristic
41	C₂×D₄	Dic₂₅₇	1	3	yes	—
42	C₂²×C₄	C₂×D₂₅₇	1	3	yes	—
43	M₁₆	—	257	12	no	—
44	C₂×C₈	—	257	12	no	—
45	C₂×C₈	—	257	1	no	—
46	C₂×C₈	—	257	3	no	—
47	C₂³	C₂×Dic₂₅₇	1	3	yes	—
48	Q₈	C₂×Dic₂₅₇	1	4	yes	—
49	D₄	C₂×Dic₂₅₇	1	12	yes	—
50	C₂×C₄	C₂×Dic₂₅₇	1	3	yes	—
51	C₂×C₄	C₂×Dic₂₅₇	1	6	yes	—
52	C₂×C₄	C₂²×D₂₅₇	1	6	yes	—
53	C₂×C₄	C₂²×D₂₅₇	1	1	yes	characteristic
54	C₈	—	257	2	no	—
55	C₈	—	257	6	no	—
56	C₂²	—	2	6	no	—
57	C₂²	C₂²×Dic₂₅₇	1	6	yes	—
58	C₂²	C₂²×Dic₂₅₇	1	1	yes	characteristic
59	C₄	C₂²×Dic₂₅₇	1	1	yes	characteristic
60	C₄	C₂²×Dic₂₅₇	1	6	yes	—
61	C₄	C₂³×D₂₅₇	1	1	yes	characteristic
62	C₂	—	2	6	no	—
63	C₂	#22551599	1	2	yes	direct product factor
64	C₂	C₂³×Dic₂₅₇	1	1	yes	characteristic

	subgroup	G/H
center	C₂×C₄	C₂²×D₂₅₇
commutator	C₂×C₂₅₇	C₂³×C₄
Frattini	C₄	C₂³×D₂₅₇
Fitting, prime radical	C₂×#41×C₂₅₇	C₂
socle	C₂²×C₂₅₇	C₂²×C₄
cosocle	C₄×C₂₅₇	C₂⁴
hypercenter	C₂×#41	D₂₅₇
hypocenter	C₂₅₇	C₂×#131
LCS	G ▷ C₂×C₂₅₇ ▷ C₂₅₇
UCS	C₁ ◁ C₂×C₄ ◁ C₂×#41

Complements

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

N	H ≅ G/N	type
1. #22551599	C₂	direct (N × H)
2. C₂×#16861602	C₂	semidirect
3. C₂²×#14523339	C₂	semidirect
5. #16861602	C₂²	semidirect
8. C₂×#14523339	C₂²	semidirect
30. C₂×C₂₅₇	#131	semidirect
32. C₂₅₇	C₂×#131	semidirect
63. C₂	#22551599	direct (N × H)

Maximal subgroups

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

subgroup	index
#22551599	2
C₂×#16861602	2
C₂²×#14523339	2
C₂×#41×C₂₅₇	2
C₂×#131	257

Subgroups — C2×#22551599 #30657500

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₂×#22551599 #30657500