Finite Group Databasebeta
Cayley diagram

C4×#491 #21651

order256
nilpotency class3
isoclinismisoclinic class of #468
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C23×C4

Aliases

direct productC4×#491

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutatorC2×C4C23×C4
Frattini, cosocleC22×C4C24
socle, prime radicalC23C22×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C43 ◁ G
LECSG ▷ C22×C4 ▷ C2 ▷ C1

401 conjugacy classes of subgroups; only the 179 normal subgroups are shown.

normal subgroups only

This group has 401 conjugacy classes of subgroups — too many to draw. Only its 179 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) = 28
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 4 generators on 28 points:

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

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#99540, #99546, #124206, …
maximal normal subgroup of#99540, #99546, #124206, …
maximal quotient ofC8×#491, #212620, #212626, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 14639);