Finite Group Databasebeta
Cayley diagram

Q8⋊C9 #606

order72
isoclinismisoclinic class of SL(2,𝔽3)
automorphismAut(G) = C3×S4 (order 72) · Inn(G) = A4 · Out(G) = C2×C3
holomorphG ⋊ Aut(G) = #72219864
homologyAbelianization (H1) = C9 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect productQ8⋊C9

Splittings

derived, SylowQ8 ⋊ C9

Subgroups

subgroupG/H
center, Frattini, socle, prime radical, hypercenterC2×C3A4
commutator, hypocenterQ8C9
Fitting, cosocleC3×Q8C3
LCSG ▷ Q8
UCSC1 ◁ C2×C3

11 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 17
transitive degreeμt(G) = 72

A minimal faithful permutation representation — 2 generators on 17 points:

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

Polycyclic presentation:

3^2,2^3|a^3=b,c^2=e,d^2=e,c^a=d,d^a=cd,d^c=de

Conjugacy classes & character table

21 conjugacy classes — view the full character table.

Relationships

derived subgroup of#3688, #3689, #63421, …
maximal subgroup of#3688, #3689, C2×Q8⋊C9, …
maximal normal subgroup of#3688, #3689, C2×Q8⋊C9, …
maximal quotient ofC2×Q8⋊C9, Q8⋊C27, C3×Q8⋊C9, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(72, 3);