Finite Group Databasebeta
Cayley diagram

C22⋊S5 #91875

order480
automorphismAut(G) = C22×S5 (order 480) · Inn(G) = C2×S5 · Out(G) = C2
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊S5

Splittings

FittingC22 ⋊ S5

Subgroups

subgroupG/H
center, FrattiniC2C2×S5
commutator, socle, cosocleC2×A5C22
Fitting, hypercenterC22S5
hypocenterA5D4
LCSG ▷ C2×A5 ▷ A5
UCSC1 ◁ C2 ◁ C22

106 conjugacy classes of subgroups; only the 9 normal subgroups are shown.

normal subgroups only

This group has 106 conjugacy classes of subgroups — too many to draw. Only its 9 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) = 9
transitive degreeμt(G) = 20

A minimal faithful permutation representation — 2 generators on 9 points:

(1,2)(5,6,7)(8,9);(1,3)(2,4)(5,6,7,8,9)

Conjugacy classes & character table

19 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11756669, D4×S5, #11756679, …
maximal normal subgroup of#11756669, D4×S5, #11756679, …
maximal quotient of(C2×S5)⋊C4, (A5⋊C4)⋊C4, #11751513, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(480, 951);