Finite Group Databasebeta
Cayley diagram

#21619

order256
nilpotency class3
isoclinismisoclinic class of #3008
automorphismAut(G) = C211×D4 (order 16384) · Inn(G) = C22×D4 · Out(G) = C29
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC22×D4C23
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ #376 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

434 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:

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

Polycyclic presentation:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#21619, #6373168, #6373173, …
maximal normal subgroup ofC2×#21619, #6373168, #6373173, …
maximal quotient of#212324, #212332, #212364, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14607);