Finite Group Databasebeta

D4×Dic21 #10621417

order672
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

direct productD4×Dic21

Splittings

HallC3×C7 ⋊ C4×D4
SylowC7 ⋊ D4×Dic3
SylowC3 ⋊ D4×Dic7

Subgroups

subgroupG/H
center, FrattiniC22C22×D21
commutatorC2×C3×C7C22×C4
Fitting, prime radicalC2×C3×C7×D4C2
socle, cosocleC22×C3×C7C23
hypercenterC2×D4D21
hypocenterC3×C7C4×D4
LCSG ▷ C2×C3×C7 ▷ C3×C7
UCSC1 ◁ C22 ◁ C2×D4

188 conjugacy classes of subgroups; only the 89 normal subgroups are shown.

normal subgroups only

This group has 188 conjugacy classes of subgroups — too many to draw. Only its 89 normal subgroups are shown.

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

Full subgroup data →

Presentation

transitive degreeμt(G) = 336

Conjugacy classes & character table

120 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13054362, #13054363, #13054364, …
maximal normal subgroup of#13054362, #13054363, #13054364, …
maximal quotient ofC22⋊C4×Dic21, #13056585, #13056586, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(672, 999);