Finite Group Databasebeta
Cayley diagram

C8×Dic10 #64967

order320
isoclinismisoclinic class of Dic10
automorphism?
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C22

Aliases

direct productC8×Dic10

Splittings

SylowC5 ⋊ C8×Q8

Subgroups

subgroupG/H
centerC2×C8C2×D5
commutatorC2×C5C22×C8
FrattiniC2×C4C22×D5
FittingC4×C5×C8C2
socle, prime radicalC22×C5C22×C4
cosocleC2×C4×C5C23
hypercenterC4×C8D5
hypocenterC5C8×Q8
LCSG ▷ C2×C5 ▷ C5
UCSC1 ◁ C2×C8 ◁ C4×C8

102 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 21
transitive degreeμt(G) = 320

A minimal faithful permutation representation — 3 generators on 21 points:

(1,2,4,5,3)(14,16,17,21)(15,18,19,20);(2,3)(4,5)(14,15,17,19)(16,20,21,18);(6,7,8,10,9,11,12,13)

Conjugacy classes & character table

104 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10597997, #10598049, C8×#677, …
maximal normal subgroup of#10597997, #10598049, C8×#677, …
maximal quotient of#10599403, #10599404, #10599410, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(320, 305);