Finite Group Databasebeta
Cayley diagram

C2×C4×D7 #1155

order112
isoclinismisoclinic class of D7
automorphismAut(G) = #120×AGL(1,𝔽7) (order 1344) · Inn(G) = D7 · Out(G) = C3×#120
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

direct productC2×C4×D7

Splittings

FittingC2×C4×C7 ⋊ C2
derived, SylowC7 ⋊ C22×C4

Subgroups

subgroupG/H
center, hypercenterC2×C4D7
commutator, hypocenterC7C22×C4
FrattiniC2C22×D7
FittingC2×C4×C7C2
socleC22×C7C22
prime radicalC22×D7C2
cosocleC2×C7C23
LCSG ▷ C7
UCSC1 ◁ C2×C4

54 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 13
transitive degreeμt(G) = 56

A minimal faithful permutation representation — 3 generators on 13 points:

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

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup of(C2×D7)⋊C8, C42×D7, #6435, …
maximal normal subgroup of(C2×D7)⋊C8, C42×D7, #6435, …
maximal quotient ofC4×Dic14, C42×D7, #6435, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(112, 28);