Subgroups — #30657372

Order 16448.

428 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	C₂×D₄×D₂₅₇	C₂	1	4	yes	maximal, complemented
2	#22551563	C₂	1	4	yes	maximal, complemented
3	#22551560	C₂	1	4	yes	maximal, complemented
4	C₄×D₁₀₂₈	C₂	1	2	yes	maximal, complemented
5	#127×C₂₅₇	C₂	1	1	yes	maximal, characteristic, complemented
6	C₂³×D₂₅₇	C₂²	1	4	yes	complemented
7	C₂×D₁₀₂₈	C₂²	1	2	yes	—
8	C₂×C₂²⋊D₂₅₇	C₂²	1	8	yes	complemented
9	D₄×D₂₅₇	—	2	16	no	—
10	C₂×C₄×D₂₅₇	C₂²	1	4	yes	complemented
11	C₄⋊Dic₂₅₇	C₂²	1	2	yes	complemented
12	C₂²⋊Dic₂₅₇	C₂²	1	4	yes	complemented
13	#16861595	C₂²	1	4	yes	complemented
14	C₂×D₄×C₂₅₇	C₂²	1	4	yes	complemented
15	C₂×D₄×C₂₅₇	C₂²	1	2	yes	complemented
16	C₄²×C₂₅₇	C₂²	1	1	yes	characteristic, complemented
17	C₂²×D₂₅₇	—	2	16	no	—
18	C₂²×D₂₅₇	—	4	4	no	—
19	C₂²×D₂₅₇	C₂³	1	4	yes	—
20	D₁₀₂₈	D₄	1	8	yes	complemented
21	C₂²⋊D₂₅₇	—	2	16	no	—
22	C₂×Dic₂₅₇	C₂³	1	4	yes	—
23	C₄×D₂₅₇	—	2	8	no	—
24	C₂³×C₂₅₇	C₂³	1	4	yes	—
25	D₄×C₂₅₇	—	2	8	no	—
26	D₄×C₂₅₇	—	4	2	no	—
27	C₂×C₄×C₂₅₇	C₂³	1	1	yes	characteristic
28	C₂×C₄×C₂₅₇	C₂³	1	2	yes	—
29	C₂²×C₂₅₇	—	2	8	no	—
30	C₂²×C₂₅₇	—	2	4	no	—
31	C₂²×C₂₅₇	C₂⁴	1	1	yes	characteristic
32	C₂×D₂₅₇	—	2	4	no	—
33	C₂×D₂₅₇	—	2	4	no	—
34	C₂×D₂₅₇	—	4	16	no	—
35	C₂×D₂₅₇	C₂×D₄	1	8	yes	complemented
36	C₄×C₂₅₇	—	2	1	no	—
37	C₄×C₂₅₇	C₂×D₄	1	4	yes	complemented
38	Dic₂₅₇	—	2	4	no	—
39	C₂×C₂₅₇	—	4	4	no	—
40	C₂×C₂₅₇	C₂²×D₄	1	2	yes	—
41	C₂×C₂₅₇	H(5,𝔽₂)	1	1	yes	characteristic
42	D₂₅₇	—	2	8	no	—
43	C₂₅₇	D₄²	1	1	yes	characteristic, complemented, Sylow
44	D₄²	—	257	1	no	maximal, Sylow
45	C₂²×D₄	—	257	4	no	—
46	#127	D₂₅₇	1	1	yes	characteristic, complemented
47	#121	—	257	4	no	—
48	#120	—	257	4	no	—
49	C₄×D₄	—	257	2	no	—
50	C₂⁴	—	257	4	no	—
51	C₂×D₄	—	257	8	no	—
52	C₂×D₄	—	257	2	no	—
53	C₂×D₄	—	514	16	no	—
54	C₂×D₄	C₂×D₂₅₇	1	4	yes	complemented
55	C₂×D₄	C₂×D₂₅₇	1	2	yes	complemented
56	C₂²×C₄	—	257	4	no	—
57	C₄⋊C₄	—	257	2	no	—
58	C₂²⋊C₄	—	257	4	no	—
59	C₂²⋊C₄	—	257	4	no	—
60	C₄²	C₂×D₂₅₇	1	1	yes	characteristic, complemented
61	C₂³	—	257	4	no	—
62	C₂³	—	514	16	no	—
63	C₂³	—	1028	4	no	—
64	C₂³	C₂²×D₂₅₇	1	4	yes	—
65	D₄	—	257	8	no	—
66	D₄	—	2	8	no	—
67	D₄	—	514	16	no	—
68	D₄	—	4	2	no	—
69	C₂×C₄	—	257	4	no	—
70	C₂×C₄	—	514	8	no	—
71	C₂×C₄	C₂²×D₂₅₇	1	1	yes	characteristic
72	C₂×C₄	C₂²×D₂₅₇	1	2	yes	—
73	C₂²	—	257	8	no	—
74	C₂²	—	2	8	no	—
75	C₂²	—	2	4	no	—
76	C₂²	—	514	4	no	—
77	C₂²	—	514	4	no	—
78	C₂²	—	1028	16	no	—
79	C₂²	C₂³×D₂₅₇	1	1	yes	characteristic
80	C₄	—	2	1	no	—
81	C₄	—	514	4	no	—
82	C₄	D₄×D₂₅₇	1	4	yes	complemented
83	C₂	—	514	8	no	—
84	C₂	—	4	4	no	—
85	C₂	C₂×D₄×D₂₅₇	1	2	yes	—
86	C₂	#22551637	1	1	yes	characteristic

	subgroup	G/H
center, Frattini	C₂²	C₂³×D₂₅₇
commutator, socle, cosocle	C₂²×C₂₅₇	C₂⁴
Fitting	#127×C₂₅₇	C₂
hypercenter	#127	D₂₅₇
hypocenter	C₂₅₇	D₄²
LCS	G ▷ C₂²×C₂₅₇ ▷ C₂₅₇
UCS	C₁ ◁ C₂² ◁ #127

Complements

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

N	H ≅ G/N	type
1. C₂×D₄×D₂₅₇	C₂	semidirect
2. #22551563	C₂	semidirect
3. #22551560	C₂	semidirect
4. C₄×D₁₀₂₈	C₂	semidirect
5. #127×C₂₅₇	C₂	semidirect
6. C₂³×D₂₅₇	C₂²	semidirect
8. C₂×C₂²⋊D₂₅₇	C₂²	semidirect
10. C₂×C₄×D₂₅₇	C₂²	semidirect
11. C₄⋊Dic₂₅₇	C₂²	semidirect
12. C₂²⋊Dic₂₅₇	C₂²	semidirect
13. #16861595	C₂²	semidirect
14. C₂×D₄×C₂₅₇	C₂²	semidirect
15. C₂×D₄×C₂₅₇	C₂²	semidirect
16. C₄²×C₂₅₇	C₂²	semidirect
20. D₁₀₂₈	D₄	semidirect
35. C₂×D₂₅₇	C₂×D₄	semidirect
37. C₄×C₂₅₇	C₂×D₄	semidirect
43. C₂₅₇	D₄²	semidirect
46. #127	D₂₅₇	semidirect
54. C₂×D₄	C₂×D₂₅₇	semidirect
55. C₂×D₄	C₂×D₂₅₇	semidirect
60. C₄²	C₂×D₂₅₇	semidirect
82. C₄	D₄×D₂₅₇	semidirect

Maximal subgroups

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

subgroup	index
C₂×D₄×D₂₅₇	2
#22551563	2
#22551560	2
C₄×D₁₀₂₈	2
#127×C₂₅₇	2
D₄²	257