Finite Group Databasebeta
Cayley diagram

C2×#1385 #12565

order256
nilpotency class4
isoclinismisoclinic class of #365
automorphismAut(G) order 16384
homologyAbelianization (H1) = C2×C42 · Schur multiplier (H2) = C24

Aliases

direct productC2×#1385

Subgroups

subgroupG/H
centerC2×C4#106
commutatorC8C2×C42
Frattini, cosocleC22×C8C23
socleC22#340
prime radicalC24Q16
LCSG ▷ C8 ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C23×C4 ◁ C23×C8 ◁ G
LECSG ▷ C22×C8 ▷ C4 ▷ C2 ▷ C1

277 conjugacy classes of subgroups; only the 159 normal subgroups are shown.

normal subgroups only

This group has 277 conjugacy classes of subgroups — too many to draw. Only its 159 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 — 3 generators on 34 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#94348, #94350, C4×#1385, …
maximal normal subgroup of#94348, #94350, C4×#1385, …
maximal quotient ofC2×#7157, #126656, #126693, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 5553);