Finite Group Databasebeta
Cayley diagram

C8×2−1+4 #60329

order256
nilpotency class2
isoclinismisoclinic class of H(5,𝔽2)
automorphismAut(G) order 245760
homologyAbelianization (H1) = C24×C8 · Schur multiplier (H2) = C29

Aliases

direct productC8×2−1+4

Subgroups

subgroupG/H
centerC2×C8C24
commutatorC2C24×C8
Frattini, cosocleC2×C4C25
socleC22C24×C4
prime radicalC2×2−1+4C4
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C2×C8 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1095 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:

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

Conjugacy classes & character table

136 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofC8×2−1+4⋊C3, C8×2−1+4⋊C5
maximal subgroup of#129665, C8×#454, C8×#456, …
maximal normal subgroup of#129665, C8×#454, C8×#456, …
maximal quotient ofC8×#520, C8×#519, C8×#536, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53317);