Finite Group Databasebeta
Cayley diagram

C2×#1822 #20693

order256
nilpotency class3
isoclinismisoclinic class of #1462
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1822

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC23C23×C4
Frattini, cosocleC22×C4C24
prime radicalC25C2×C4
LCSG ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C24×C4 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

715 conjugacy classes of subgroups; only the 231 normal subgroups are shown.

normal subgroups only

This group has 715 conjugacy classes of subgroups — too many to draw. Only its 231 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) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 4 generators on 26 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#105827, #106151, #106547, …
maximal normal subgroup of#105827, #106151, #106547, …
maximal quotient ofC2×#8699, C2×#8700, #189691, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 13681);