Finite Group Databasebeta
Cayley diagram

C22×C22⋊Dic7 #90530

order448
isoclinismisoclinic class of Dic14
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C27

Aliases

direct productC22×C22⋊Dic7

Splittings

SylowC7 ⋊ C22×C22⋊C4

Subgroups

subgroupG/H
centerC24C2×D7
commutatorC2×C7C23×C4
FrattiniC22C23×D7
Fitting, prime radicalC25×C7C2
socleC24×C7C22
cosocleC22×C7C24
hypercenterC25D7
hypocenterC7C22×C22⋊C4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C24 ◁ C25

674 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 224

A minimal faithful permutation representation — 4 generators on 19 points:

(5,6)(7,8)(13,14,16,18,19,17,15);(6,8)(9,10,11,12)(14,15)(16,17)(18,19);(3,4);(1,2)

Conjugacy classes & character table

136 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11727249, #11727250, C2×#89321, …
maximal normal subgroup of#11727249, #11727250, C2×#89321, …
maximal quotient ofC22×C22⋊(C7⋊C8), C2×#89979, C22×C7⋊#95, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(448, 1292);