Finite Group Databasebeta
Cayley diagram

C2×#1605 #18111

order256
nilpotency class3
isoclinismisoclinic class of #1595
automorphismAut(G) order 32768
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C26

Aliases

direct productC2×#1605

Subgroups

subgroupG/H
center, socleC23#120
commutator, Frattini, cosocleC22×C4C24
prime radicalC24C2×D4
LCSG ▷ C22×C4 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C23×C4 ◁ G
LECSG ▷ C22×C4 ▷ C22 ▷ C1

600 conjugacy classes of subgroups; only the 135 normal subgroups are shown.

normal subgroups only

This group has 600 conjugacy classes of subgroups — too many to draw. Only its 135 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);(7,10)(11,12,15,18)(13,19,21,26)(14,22,24,17)(16,23,25,20);(3,4)(5,7)(6,8)(9,10)(11,13,15,21)(12,16,18,25)(14,23,24,20)(17,26,22,19);(3,5,6,9)(4,7,8,10)

Conjugacy classes & character table

46 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#137325, #137327, #137346, …
maximal normal subgroup of#137325, #137327, #137346, …
maximal quotient ofC2×#7763, C2×#7757, C2×#7772, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 11099);