Subgroups — C₂×#22551581 #30657255

Order 16448.

330 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	C₂²×D₁₀₂₈	C₂	1	1	yes	maximal, characteristic
2	#22551581	C₂	1	8	yes	maximal, direct product factor
3	C₂×#16861595	C₂	1	4	yes	maximal, complemented
4	C₂×C₄×Dic₂₅₇	C₂	1	1	yes	maximal, characteristic, complemented
5	C₂²×Q₈×C₂₅₇	C₂	1	1	yes	maximal, characteristic, complemented
6	C₂³×D₂₅₇	C₂²	1	2	yes	—
7	C₂×D₁₀₂₈	—	2	4	no	—
8	C₂×D₁₀₂₈	C₂²	1	4	yes	—
9	C₂²×Dic₂₅₇	C₂²	1	2	yes	—
10	#16861595	C₂²	1	16	yes	complemented
11	C₄×Dic₂₅₇	C₂²	1	4	yes	complemented
12	C₂×Q₈×C₂₅₇	—	2	4	no	—
13	C₂×Q₈×C₂₅₇	C₂²	1	4	yes	complemented
14	C₂²×C₄×C₂₅₇	C₂²	1	2	yes	—
15	C₂²×C₄×C₂₅₇	C₂²	1	1	yes	characteristic
16	C₂²×D₂₅₇	—	2	4	no	—
17	C₂²×D₂₅₇	—	2	8	no	—
18	C₂²×D₂₅₇	C₂³	1	4	yes	—
19	D₁₀₂₈	—	2	8	no	—
20	C₂×Dic₂₅₇	—	2	4	no	—
21	C₂×Dic₂₅₇	C₂³	1	4	yes	—
22	C₂³×C₂₅₇	C₂³	1	1	yes	characteristic
23	Q₈×C₂₅₇	—	2	8	no	—
24	C₂×C₄×C₂₅₇	—	2	4	no	—
25	C₂×C₄×C₂₅₇	D₄	1	4	yes	—
26	C₂×C₄×C₂₅₇	C₂³	1	4	yes	—
27	C₂×C₄×C₂₅₇	C₂³	1	2	yes	—
28	C₂²×C₂₅₇	C₂×D₄	1	2	yes	—
29	C₂²×C₂₅₇	#41	1	4	yes	—
30	C₂²×C₂₅₇	C₂⁴	1	1	yes	characteristic
31	C₂×D₂₅₇	—	2	4	no	—
32	C₂×D₂₅₇	—	2	8	no	—
33	C₂×D₂₅₇	—	4	8	no	—
34	C₄×C₂₅₇	—	2	4	no	—
35	C₄×C₂₅₇	C₂×D₄	1	4	yes	—
36	Dic₂₅₇	—	2	4	no	—
37	C₂×C₂₅₇	#124	1	4	yes	complemented
38	C₂×C₂₅₇	C₂²×D₄	1	1	yes	characteristic
39	C₂×C₂₅₇	C₂×#41	1	2	yes	—
40	D₂₅₇	—	4	4	no	—
41	C₂₅₇	C₂×#124	1	1	yes	characteristic, complemented, Sylow
42	C₂×#124	—	257	1	no	maximal, Sylow
43	C₂²×Q₈	D₂₅₇	1	1	yes	characteristic, complemented
44	C₂²×D₄	—	257	1	no	—
45	#124	—	257	8	no	—
46	C₂×C₂²⋊C₄	—	257	4	no	—
47	C₂×C₄²	—	257	1	no	—
48	C₂⁴	—	257	2	no	—
49	C₂×Q₈	—	2	4	no	—
50	C₂×Q₈	C₂×D₂₅₇	1	4	yes	complemented
51	C₂×D₄	—	257	4	no	—
52	C₂×D₄	—	514	4	no	—
53	C₂²×C₄	—	257	2	no	—
54	C₂²×C₄	C₂×D₂₅₇	1	2	yes	—
55	C₂²×C₄	C₂×D₂₅₇	1	1	yes	characteristic
56	C₂²⋊C₄	—	257	16	no	—
57	C₄²	—	257	4	no	—
58	C₂³	—	257	4	no	—
59	C₂³	—	514	4	no	—
60	C₂³	—	514	8	no	—
61	C₂³	C₂²×D₂₅₇	1	1	yes	characteristic
62	Q₈	—	2	8	no	—
63	D₄	—	514	8	no	—
64	C₂×C₄	—	257	4	no	—
65	C₂×C₄	—	2	4	no	—
66	C₂×C₄	—	514	4	no	—
67	C₂×C₄	C₂²⋊D₂₅₇	1	4	yes	—
68	C₂×C₄	C₂²×D₂₅₇	1	4	yes	—
69	C₂×C₄	C₂²×D₂₅₇	1	2	yes	—
70	C₂²	—	514	4	no	—
71	C₂²	—	514	8	no	—
72	C₂²	—	1028	8	no	—
73	C₂²	C₂×C₂²⋊D₂₅₇	1	2	yes	—
74	C₂²	#16861619	1	4	yes	—
75	C₂²	C₂³×D₂₅₇	1	1	yes	characteristic
76	C₄	—	2	4	no	—
77	C₄	—	514	4	no	—
78	C₄	C₂×C₂²⋊D₂₅₇	1	4	yes	—
79	C₂	—	1028	4	no	—
80	C₂	#22551581	1	4	yes	direct product factor
81	C₂	C₂²×C₂²⋊D₂₅₇	1	1	yes	characteristic
82	C₂	C₂×#16861619	1	2	yes	—

	subgroup	G/H
center	C₂³	C₂²×D₂₅₇
commutator, cosocle	C₂²×C₂₅₇	C₂⁴
Frattini	C₂²	C₂³×D₂₅₇
Fitting	C₂²×Q₈×C₂₅₇	C₂
socle	C₂³×C₂₅₇	C₂³
prime radical	C₂²×D₁₀₂₈	C₂
hypercenter	C₂²×Q₈	D₂₅₇
hypocenter	C₂₅₇	C₂×#124
LCS	G ▷ C₂²×C₂₅₇ ▷ C₂₅₇
UCS	C₁ ◁ C₂³ ◁ C₂²×Q₈

Complements

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

N	H ≅ G/N	type
2. #22551581	C₂	direct (N × H)
3. C₂×#16861595	C₂	semidirect
4. C₂×C₄×Dic₂₅₇	C₂	semidirect
5. C₂²×Q₈×C₂₅₇	C₂	semidirect
10. #16861595	C₂²	semidirect
11. C₄×Dic₂₅₇	C₂²	semidirect
13. C₂×Q₈×C₂₅₇	C₂²	semidirect
37. C₂×C₂₅₇	#124	semidirect
41. C₂₅₇	C₂×#124	semidirect
43. C₂²×Q₈	D₂₅₇	semidirect
50. C₂×Q₈	C₂×D₂₅₇	semidirect
80. C₂	#22551581	direct (N × H)

Maximal subgroups

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

subgroup	index
C₂²×D₁₀₂₈	2
#22551581	2
C₂×#16861595	2
C₂×C₄×Dic₂₅₇	2
C₂²×Q₈×C₂₅₇	2
C₂×#124	257

Subgroups — C2×#22551581 #30657255

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₂×#22551581 #30657255