Subgroups — C₂×#22551680 #30657814

Order 16448.

266 conjugacy classes of subgroups.

Conjugacy classes of subgroups

#	subgroup	G/H	class size	multiplicity	normal?	properties
1	#22551680	C₂	1	8	yes	maximal, direct product factor
2	C₂×#16861628	C₂	1	3	yes	maximal, complemented
3	C₂×#16861626	C₂	1	3	yes	maximal, complemented
4	C₂×#16861619	C₂	1	1	yes	maximal, characteristic
5	#16861628	C₂²	1	12	yes	complemented
6	#16861626	C₂²	1	12	yes	complemented
7	C₂×#14523346	C₂²	1	1	yes	characteristic
8	C₂×#14523346	C₂²	1	3	yes	—
9	#16861619	C₄	1	4	yes	—
10	#16861619	C₂²	1	4	yes	—
11	C₂×D₁₀₂₈	C₄	1	3	yes	—
12	C₂×C₄×D₂₅₇	C₂²	1	3	yes	—
13	C₂×Q₈×C₂₅₇	C₄	1	1	yes	characteristic
14	#14523346	C₂³	1	2	yes	—
15	#14523346	C₂³	1	6	yes	—
16	C₂²×D₂₅₇	C₂×C₄	1	3	yes	—
17	D₁₀₂₈	C₂×C₄	1	12	yes	—
18	C₂×Dic₂₅₇	C₂³	1	1	yes	characteristic
19	C₄×D₂₅₇	C₂×C₄	1	6	yes	—
20	C₄×D₂₅₇	C₂³	1	6	yes	—
21	Q₈×C₂₅₇	C₂×C₄	1	4	yes	—
22	C₂×C₄×C₂₅₇	C₂×C₄	1	3	yes	—
23	C₂²×C₂₅₇	C₂²×C₄	1	1	yes	characteristic
24	C₂×D₂₅₇	—	2	6	no	—
25	C₂×D₂₅₇	C₂²×C₄	1	6	yes	—
26	C₄×C₂₅₇	C₂²×C₄	1	6	yes	—
27	Dic₂₅₇	C₂²×C₄	1	1	yes	characteristic
28	Dic₂₅₇	C₂⁴	1	1	yes	characteristic
29	C₂×C₂₅₇	#131	1	2	yes	complemented
30	C₂×C₂₅₇	C₂³×C₄	1	1	yes	characteristic
31	D₂₅₇	—	2	6	no	—
32	C₂₅₇	C₂×#131	1	1	yes	characteristic, complemented, Sylow
33	C₂×#131	—	257	1	no	maximal, Sylow
34	C₂×#41	—	257	1	no	—
35	#131	—	257	8	no	—
36	C₂×M₁₆	—	257	3	no	—
37	C₂²×C₈	—	257	3	no	—
38	#41	—	257	4	no	—
39	#41	—	257	4	no	—
40	C₂×Q₈	#11759967	1	1	yes	characteristic
41	C₂×D₄	—	257	3	no	—
42	C₂²×C₄	—	257	3	no	—
43	M₁₆	—	257	12	no	—
44	C₂×C₈	—	257	1	no	—
45	C₂×C₈	—	257	3	no	—
46	C₂×C₈	—	257	12	no	—
47	C₂³	—	257	3	no	—
48	Q₈	C₂×#11759967	1	4	yes	—
49	D₄	—	257	12	no	—
50	C₂×C₄	—	257	1	no	—
51	C₂×C₄	—	257	6	no	—
52	C₂×C₄	—	257	6	no	—
53	C₂×C₄	C₂×#11759967	1	3	yes	—
54	C₈	—	257	2	no	—
55	C₈	—	257	6	no	—
56	C₂²	—	257	6	no	—
57	C₂²	—	514	6	no	—
58	C₂²	C₂²×#11759967	1	1	yes	characteristic
59	C₄	—	257	1	no	—
60	C₄	—	257	1	no	—
61	C₄	C₂²×#11759967	1	6	yes	—
62	C₂	—	514	6	no	—
63	C₂	#22551680	1	2	yes	direct product factor
64	C₂	C₂³×#11759967	1	1	yes	characteristic

	subgroup	G/H
center	C₂²	C₂²×#11759967
commutator	C₂×C₂₅₇	C₂³×C₄
Frattini	C₂	C₂³×#11759967
Fitting	C₂×Q₈×C₂₅₇	C₄
socle	C₂²×C₂₅₇	C₂²×C₄
prime radical	C₂×#16861619	C₂
cosocle	Dic₂₅₇	C₂⁴
hypercenter	C₂×Q₈	#11759967
hypocenter	C₂₅₇	C₂×#131
LCS	G ▷ C₂×C₂₅₇ ▷ C₂₅₇
UCS	C₁ ◁ C₂² ◁ C₂×Q₈

Complements

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

N	H ≅ G/N	type
1. #22551680	C₂	direct (N × H)
2. C₂×#16861628	C₂	semidirect
3. C₂×#16861626	C₂	semidirect
5. #16861628	C₂²	semidirect
6. #16861626	C₂²	semidirect
29. C₂×C₂₅₇	#131	semidirect
32. C₂₅₇	C₂×#131	semidirect
63. C₂	#22551680	direct (N × H)

Maximal subgroups

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

subgroup	index
#22551680	2
C₂×#16861628	2
C₂×#16861626	2
C₂×#16861619	2
C₂×#131	257

Subgroups — C2×#22551680 #30657814

Conjugacy classes of subgroups

Complements

Maximal subgroups

Subgroups — C₂×#22551680 #30657814