Finite Group Databasebeta
Cayley diagram

C8×Q16 #1577

order128
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) = C23×#3003 (order 1024) · Inn(G) = D4 · Out(G) = C24×D4
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C22

Aliases

direct productC8×Q16

Subgroups

subgroupG/H
centerC2×C8D4
commutatorC4C22×C8
Frattini, cosocleC42C23
socle, prime radicalC22C4×D4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ C4×C8 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

82 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 3 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

56 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#7069, #7071, C8×SD32, …
maximal normal subgroup of#7069, #7071, C8×SD32, …
maximal quotient ofC8×#103, C8×#107, #8844, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 309);