Finite Group Databasebeta
Cayley diagram

#38954

order256
nilpotency class2
isoclinismisoclinic class of #37644
automorphismAut(G) order 262144
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, commutator, Frattini, socle, cosocleC23C25
prime radicalC22×D4C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C23 ▷ C1

1109 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 5 generators on 28 points:

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

Polycyclic presentation:

2^8|a^2=f,b^2=f,c^2=g,d^2=f,e^2=fh,b^a=bf,c^a=cg,d^a=df,c^b=ch,e^b=efh

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#98353, #130509, #131002, …
maximal normal subgroup of#98353, #130509, #131002, …
maximal quotient of#521558, #522256, #522824, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 31942);