Finite Group Databasebeta
Cayley diagram

Q8×D16 #33945

order256
nilpotency class4
isoclinismisoclinic class of D4×D16
automorphismAut(G) order 49152
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C25

Aliases

direct productQ8×D16

Subgroups

subgroupG/H
center, socleC22C22×D8
commutator, Frattini, cosocleC2×C8C24
prime radicalC2×D16C22
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C4×Q8 ◁ C8×Q8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

264 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 24 points:

(1,2,3,4)(5,8,7,6);(1,5,3,7)(2,6,4,8);(9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24);(10,24)(11,23)(12,22)(13,21)(14,20)(15,19)(16,18)

Conjugacy classes & character table

55 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofSL(2,𝔽3)×D16
maximal subgroup of#151554, #151558, #151606, …
maximal normal subgroup of#151554, #151558, #151606, …
maximal quotient ofQ8×#357, C4⋊C4×D16, Q8×#366, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 26933);