Finite Group Databasebeta
Cayley diagram

C2×#1515 #17557

order256
nilpotency class3
isoclinismisoclinic class of #1510
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1515

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
prime radicalC24C2×D4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

511 conjugacy classes of subgroups; only the 191 normal subgroups are shown.

normal subgroups only

This group has 511 conjugacy classes of subgroups — too many to draw. Only its 191 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) = 64

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

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107309, #107595, #107615, …
maximal normal subgroup of#107309, #107595, #107615, …
maximal quotient ofC2×#7596, C2×#7604, C2×#7605, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10545);