Finite Group Databasebeta
Cayley diagram

C2×C4×Dic10 #65801

order320
isoclinismisoclinic class of Dic10
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×C4×Dic10

Splittings

SylowC5 ⋊ C2×C4×Q8

Subgroups

subgroupG/H
centerC22×C4C2×D5
commutatorC2×C5C23×C4
FrattiniC22C23×D5
FittingC2×C42×C5C2
socle, prime radicalC23×C5C23
cosocleC22×C5C24
hypercenterC2×C42D5
hypocenterC5C2×C4×Q8
LCSG ▷ C2×C5 ▷ C5
UCSC1 ◁ C22×C4 ◁ C2×C42

298 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 19
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 4 generators on 19 points:

(7,8,10,11,9)(12,14,15,19)(13,16,17,18);(1,2)(8,9)(10,11)(12,13,15,17)(14,18,19,16);(3,4,5,6);(1,2)

Conjugacy classes & character table

104 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10599412, #10599413, #10599476, …
maximal normal subgroup of#10599412, #10599413, #10599476, …
maximal quotient ofC42×Dic10, #10605031, C4×#4016, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 1139);