Finite Group Databasebeta
Cayley diagram

C4×C5×Dic5 #87789

order400
isoclinismisoclinic class of D5
automorphism?
homologyAbelianization (H1) = C42×C5 · Schur multiplier (H2) = C4

Aliases

direct productC4×C5×Dic5

Splittings

derivedC5 ⋊ C42×C5
SylowC52 ⋊ C42

Subgroups

subgroupG/H
center, hypercenterC2×C4×C5D5
commutator, hypocenterC5C42×C5
FrattiniC22C2×C5×D5
FittingC2×C4×C52C2
socle, prime radicalC22×C52C22
cosocleC22×C5C22×C5
LCSG ▷ C5
UCSC1 ◁ C2×C4×C5

76 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 80

A minimal faithful permutation representation — 2 generators on 18 points:

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

Conjugacy classes & character table

160 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofDic5×#168, #11716595, #11716610, …
maximal normal subgroup ofDic5×#168, #11716595, #11716610, …
maximal quotient ofC4×C5×#168, C5×#3935, C5×C8×Dic5, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(400, 83);