Finite Group Databasebeta
Cayley diagram

C2×#1506 #17540

order256
nilpotency class3
isoclinismisoclinic class of #1504
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1506

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

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

normal subgroups only

This group has 565 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) = 26
transitive degreeμt(G) = 64

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

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107332, #107443, #107625, …
maximal normal subgroup of#107332, #107443, #107625, …
maximal quotient ofC2×#7581, C2×#7588, C2×#7590, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10528);