Finite Group Databasebeta
Cayley diagram

(C2×D7)⋊C4 #1140

order112
isoclinismisoclinic class of Dic14
automorphismAut(G) = C24×AGL(1,𝔽7) (order 672) · Inn(G) = C2×D7 · Out(G) = C23×C3
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect product(C2×D7)⋊C4

Splittings

FittingC2×C4×C7 ⋊ C2
SylowC7 ⋊ C22⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D7
commutatorC2×C7C2×C4
FittingC2×C4×C7C2
socle, cosocleC22×C7C22
prime radicalC22×D7C2
hypercenterC2×C4D7
hypocenterC7C22⋊C4
LCSG ▷ C2×C7 ▷ C7
UCSC1 ◁ C22 ◁ C2×C4

34 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 15
transitive degreeμt(G) = 56

A minimal faithful permutation representation — 2 generators on 15 points:

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

Polycyclic presentation:

2^4,7|b^2=c,b^a=bd,e^a=e^6

Conjugacy classes & character table

34 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#6435, C4×D28, #6438, …
maximal normal subgroup of#6435, C4×D28, #6438, …
maximal quotient of#6379, #6380, #6383, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(112, 13);