Finite Group Databasebeta
Cayley diagram

#31091

order256
nilpotency class3
isoclinismisoclinic class of #30396
automorphismAut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC22×C4C24
prime radicalC24C2×D4
LCSG ▷ C22×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C4×C22⋊C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

360 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 4 generators on 28 points:

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

Polycyclic presentation:

2^8|a^2=fh,b^2=h,c^2=e,d^2=h,f^2=h,b^a=be,c^a=cf,d^a=def,c^b=cg,d^b=de,f^c=fh,f^d=fh

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#6634783, #6634784, #6634809, …
maximal normal subgroup of#6634783, #6634784, #6634809, …
maximal quotient of#343435, #343450, #343464, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 24079);