Finite Group Databasebeta
Cayley diagram

C2×#1558 #17732

order256
nilpotency class3
isoclinismisoclinic class of #1510
automorphismAut(G) order 262144
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1558

Subgroups

subgroupG/H
center, socleC23C2×C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

591 conjugacy classes of subgroups; only the 207 normal subgroups are shown.

normal subgroups only

This group has 591 conjugacy classes of subgroups — too many to draw. Only its 207 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) = 128

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

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

Conjugacy classes & character table

52 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106067, #107302, #107340, …
maximal normal subgroup of#106067, #107302, #107340, …
maximal quotient ofC2×#7595, C2×#7605, #160564, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10720);