Finite Group Databasebeta
Cayley diagram

Q8×#135 #61357

order256
nilpotency class3
isoclinismisoclinic class of D4×D8
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productQ8×#135

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutator, Frattini, cosocleC2×C4C25
socleC22C23×D4
prime radicalC2×#135C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C4×Q8 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

893 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)(11,18)(12,16)(13,21)(14,17)(15,19)(20,23)(22,24);(9,11)(10,15)(12,19)(13,22)(14,20)(16,23)(17,24)(18,21);(9,12,14,13)(10,16,17,21)(11,19,20,22)(15,23,24,18)

Conjugacy classes & character table

70 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofSL(2,𝔽3)×#135
maximal subgroup of#131937, #131962, #221018, …
maximal normal subgroup of#131937, #131962, #221018, …
maximal quotient ofQ8×#416, C4⋊C4×#135, Q8×#427, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54345);