Finite Group Databasebeta
Cayley diagram

#21440

order256
nilpotency class2
isoclinismisoclinic class of #2846
automorphismAut(G) order 49152
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, cosocleC22×C4C24
commutator, socleC23C23×C4
prime radicalC2×#120C4
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

854 conjugacy classes of subgroups; only the 223 normal subgroups are shown.

normal subgroups only

This group has 854 conjugacy classes of subgroups — too many to draw. Only its 223 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) = 16
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 16 points:

(1,2)(3,4)(5,6)(7,8)(9,10,12,11,13,14,16,15);(2,4);(6,8);(9,11,12,14,13,15,16,10)

Polycyclic presentation:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

Fitting subgroup of#21440⋊C3, #72342671, #72342672
maximal subgroup of#208806, #208822, #265267, …
maximal normal subgroup of#208806, #208822, #265267, …
maximal quotient of#208668, #208669, #208670, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14428);