Finite Group Databasebeta
Cayley diagram

#20742

order256
nilpotency class3
isoclinismisoclinic class of #3003
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

669 conjugacy classes of subgroups; only the 207 normal subgroups are shown.

normal subgroups only

This group has 669 conjugacy classes of subgroups — too many to draw. Only its 207 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105658, #105926, #105927, …
maximal normal subgroup of#105658, #105926, #105927, …
maximal quotient of#190707, #190708, #190711, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13730);