Finite Group Databasebeta
Cayley diagram

#20669

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socleC22C22×C4⋊C4
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×#41 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

661 conjugacy classes of subgroups; only the 263 normal subgroups are shown.

normal subgroups only

This group has 661 conjugacy classes of subgroups — too many to draw. Only its 263 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) = 36
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 36 points:

(1,2)(3,4)(5,6,10,14,11,15,9,24)(7,16,20,26,18,30,19,12)(8,13,23,28,21,27,22,34)(17,29,32,35,33,36,31,25);(5,7,9,19,11,18,10,20)(6,12,14,16,15,26,24,30)(8,17,22,31,21,33,23,32)(13,25,28,29,27,35,34,36);(2,4)(5,8)(6,13)(7,17)(9,22)(10,23)(11,21)(12,25)(14,28)(15,27)(16,29)(18,33)(19,31)(20,32)(24,34)(26,35)(30,36);(7,18)(8,21)(12,26)(13,27)(16,30)(19,20)(22,23)(28,34)

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#135328, #135329, #135348, …
maximal normal subgroup of#135328, #135329, #135348, …
maximal quotient of#188712, #188719, #188726, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13657);