Finite Group Databasebeta
Cayley diagram

C2×#1572 #17802

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 32768
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4

Aliases

direct productC2×#1572

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC23C2×C4⋊C4
prime radicalC24C4⋊C4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

335 conjugacy classes of subgroups; only the 199 normal subgroups are shown.

normal subgroups only

This group has 335 conjugacy classes of subgroups — too many to draw. Only its 199 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) = 34
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 34 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#109663, #109664, #118017, …
maximal normal subgroup of#109663, #109664, #118017, …
maximal quotient ofC2×#7878, C2×#8277, C2×#8278, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10790);