Finite Group Databasebeta
Cayley diagram

D13⋊C8 #6117

order208
isoclinismisoclinic class of #261
automorphismAut(G) = D4×AGL(1,𝔽13) (order 1248) · Inn(G) = #261 · Out(G) = C3×D4
homologyAbelianization (H1) = C2×C8 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD13⋊C8

Splittings

derived, SylowC13 ⋊ C2×C8

Subgroups

subgroupG/H
center, hypercenterC4#261
commutator, hypocenterC13C2×C8
FrattiniC2C2×#261
FittingC4×C13C4
socleC2×C13C2×C4
prime radicalC2×D13C4
cosocleDic13C22
LCSG ▷ C13
UCSC1 ◁ C4

22 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 104

A minimal faithful permutation representation — 2 generators on 21 points:

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

Polycyclic presentation:

2^4,13|a^2=c,b^2=d,c^2=d,e^a=e^8,e^c=e^12

Conjugacy classes & character table

28 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC8×#261, #88100, #88115, …
maximal normal subgroup ofC8×#261, #88100, #88115, …
maximal quotient ofD13⋊C16, #88098, C4×#1057, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(208, 28);