Finite Group Databasebeta
Cayley diagram

#12815

order256
nilpotency class4
isoclinismisoclinic class of #2184
automorphismAut(G) = C22×#72237160 (order 4096) · Inn(G) = C2×D8 · Out(G) = C23×#41
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C23

Aliases

No aliases for this group.

Subgroups

subgroupG/H
centerC2×C4C2×D8
commutatorC2×C8C22×C4
Frattini, cosocleC22×C8C23
socleC22C2×#102
prime radicalC2×#135C22
LCSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C2×C42 ◁ C2×C4×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

211 conjugacy classes of subgroups; only the 81 normal subgroups are shown.

normal subgroups only

This group has 211 conjugacy classes of subgroups — too many to draw. Only its 81 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) = 128

A minimal faithful permutation representation — 3 generators on 36 points:

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

Polycyclic presentation:

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

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#131847, #131854, #131870, …
maximal normal subgroup of#131847, #131854, #131870, …
maximal quotient of#134358, #134359, #134360, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5803);