Finite Group Databasebeta
Cayley diagram

#20777

order256
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C42C23
commutatorC22C23×C8
Frattini, cosocleC22×C4C24
socleC23C23×C4
prime radicalC24C22×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C2×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

531 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

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

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

Polycyclic presentation:

2^8|a^2=g,b^2=f,d^2=e,g^2=h,b^a=be,c^a=cf

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#94864, #94865, #94866, …
maximal normal subgroup of#94864, #94865, #94866, …
maximal quotient of#191325, #191326, #191327, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13765);