Finite Group Databasebeta
Cayley diagram

C42×Q16 #20499

order256
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) order 196608
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C24×C4

Aliases

direct productC42×Q16

Subgroups

subgroupG/H
centerC2×C42D4
commutatorC4C22×C42
Frattini, cosocleC22×C4C24
socle, prime radicalC23C22×D4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C42 ◁ C43 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

555 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 24
transitive degreeμt(G) = 256

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

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

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofQ16×C42⋊C3
maximal subgroup ofC4×#1332, #128532, C4×#1334, …
maximal normal subgroup ofC4×#1332, #128532, C4×#1334, …
maximal quotient ofC4×C8×Q16, #183885, #183909, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13487);