Finite Group Databasebeta
Cayley diagram

C2×D4×Dic7 #90486

order448
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×D4×Dic7

Splittings

SylowC7 ⋊ C2×C4×D4

Subgroups

subgroupG/H
centerC23C22×D7
commutatorC2×C7C23×C4
FrattiniC22C23×D7
Fitting, prime radicalC22×C7×D4C2
socleC23×C7C23
cosocleC22×C7C24
hypercenterC22×D4D7
hypocenterC7C2×C4×D4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C23 ◁ C22×D4

426 conjugacy classes of subgroups; only the 215 normal subgroups are shown.

normal subgroups only

This group has 426 conjugacy classes of subgroups — too many to draw. Only its 215 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 17
transitive degreeμt(G) = 224

A minimal faithful permutation representation — 4 generators on 17 points:

(3,4,5,6)(12,13)(14,15)(16,17);(1,2)(7,8)(9,10)(11,12,14,16,17,15,13);(1,2)(8,10);(1,2)

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofDic7×#99, #11727782, Dic7×#100, …
maximal normal subgroup ofDic7×#99, #11727782, Dic7×#100, …
maximal quotient ofC2×C22⋊C4×Dic7, C2×#89722, C2×#89723, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(448, 1248);