Finite Group Databasebeta
Cayley diagram

#20544

order256
nilpotency class2
isoclinismisoclinic class of #534
automorphismAut(G) order 65536
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C23×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutatorC22C22×C42
socleC23C23×C4
prime radicalC24C22×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

453 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 28
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 28 points:

(1,2,3,4)(5,6)(7,10)(8,9)(11,12)(13,14,16,21,18,20,17,22)(15,19,23,27,25,26,24,28);(6,9)(7,11)(13,15,17,24,18,25,16,23)(14,19,22,28,20,26,21,27);(5,7,8,11)(6,10,9,12)(14,20)(19,26)(21,22)(27,28);(6,9)(10,12)

Polycyclic presentation:

2^8|a^2=f,b^2=g,c^2=e,f^2=h,g^2=h,b^a=be,c^a=ch,d^a=de,c^b=ce

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#108635, #108678, #108680, …
maximal normal subgroup of#108635, #108678, #108680, …
maximal quotient of#184465, #184466, #184484, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13532);