Finite Group Databasebeta

C2×C4⋊Dic21 #10621408

order672
isoclinismisoclinic class of Dic42
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

direct productC2×C4⋊Dic21

Splittings

HallC3×C7 ⋊ C2×C4⋊C4
SylowC7 ⋊ C2×C4⋊Dic3
SylowC3 ⋊ C2×C4⋊Dic7

Subgroups

subgroupG/H
centerC23C2×D21
commutatorC2×C3×C7C22×C4
FrattiniC22C22×D21
FittingC22×C3×C4×C7C2
socle, prime radicalC23×C3×C7C22
cosocleC22×C3×C7C23
hypercenterC22×C4D21
hypocenterC3×C7C2×C4⋊C4
LCSG ▷ C2×C3×C7 ▷ C3×C7
UCSC1 ◁ C23 ◁ C22×C4

184 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 672

Conjugacy classes & character table

180 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#13051008, #13051009, #13051015, …
maximal normal subgroup of#13051008, #13051009, #13051015, …
maximal quotient ofC2×C4⋊(C3⋊(C7⋊C8)), #13056561, C4×C4⋊Dic21, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(672, 990);