Finite Group Databasebeta
Cayley diagram

#12820

order256
nilpotency class4
isoclinismisoclinic class of #2212
automorphismAut(G) order 8192
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC22#459
commutatorC2×C8C22×C4
Frattini, cosocleC22×C8C23
prime radicalC2×#135C22
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C22×C4 ◁ C2×C4×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

207 conjugacy classes of subgroups; only the 79 normal subgroups are shown.

normal subgroups only

This group has 207 conjugacy classes of subgroups — too many to draw. Only its 79 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 — 3 generators on 36 points:

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

Polycyclic presentation:

2^8|a^2=f,b^2=d,d^2=h,e^2=gh,g^2=h,b^a=bd,c^a=ce,d^a=dh,e^a=eg,g^a=gh,e^c=eg,g^c=gh

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#131842, #131846, #134946, …
maximal normal subgroup of#131842, #131846, #134946, …
maximal quotient of#134366, #134411, #134444, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5808);