Finite Group Databasebeta
Cayley diagram

C7⋊C16 #1128

order112
isoclinismisoclinic class of D7
automorphismAut(G) = C2×C4×AGL(1,𝔽7) (order 336) · Inn(G) = D7 · Out(G) = C2×C3×C4
homologyAbelianization (H1) = C16 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productC7⋊C16

Splittings

derived, SylowC7 ⋊ C16

Subgroups

subgroupG/H
center, Frattini, hypercenterC8D7
commutator, hypocenterC7C16
Fitting, cosocleC7×C8C2
socle, prime radicalC2×C7C8
LCSG ▷ C7
UCSC1 ◁ C8

10 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 23
transitive degreeμt(G) = 112

A minimal faithful permutation representation — 2 generators on 23 points:

(2,3)(4,5)(6,7)(8,9,10,13,11,14,16,19,12,15,17,20,18,21,22,23);(1,2,4,6,7,5,3)

Polycyclic presentation:

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

Conjugacy classes & character table

40 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD7×C16, #6372, C2×C7⋊C16, …
maximal normal subgroup ofD7×C16, #6372, C2×C7⋊C16, …
maximal quotient ofC7⋊C32, C2×C7⋊C16, C3×C7⋊C16, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(112, 1);