Finite Group Databasebeta
Cayley diagram

Q8×#137 #61368

order256
nilpotency class3
isoclinismisoclinic class of D4×AGL(1,ℤ/8)
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productQ8×#137

Subgroups

subgroupG/H
center, socleC22C23×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#41C23
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C2×C4×Q8 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

891 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 5 generators on 24 points:

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

Conjugacy classes & character table

55 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofSL(2,𝔽3)×#137
maximal subgroup of#250928, #250960, #250992, …
maximal normal subgroup of#250928, #250960, #250992, …
maximal quotient ofQ8×#419, Q8×#417, C4⋊C4×#137, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54356);