Finite Group Databasebeta
Cayley diagram

C4×Dic25 #87717

order400
isoclinismisoclinic class of D25
automorphism?
homologyAbelianization (H1) = C42 · Schur multiplier (H2) = C4

Aliases

direct productC4×Dic25

Splittings

derived, SylowC25 ⋊ C42

Subgroups

subgroupG/H
center, hypercenterC2×C4D25
commutator, hypocenterC25C42
Frattini, socle, prime radicalC22×C5C2×D5
FittingC2×C4×C25C2
cosocleC22×C25C22
LCSG ▷ C25
UCSC1 ◁ C2×C4

45 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 33
transitive degreeμt(G) = 400

A minimal faithful permutation representation — 2 generators on 33 points:

(2,4)(3,7)(5,10)(6,13)(8,16)(9,15)(11,12)(14,20)(17,21)(18,22)(19,24)(23,25)(30,31,32,33);(1,15,25,18,4,7,21,19,10,13,16,14,12,11,20,8,6,5,24,17,3,2,22,23,9)(26,27,28,29)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC8×Dic25, #11716363, #11716364, …
maximal normal subgroup ofC8×Dic25, #11716363, #11716364, …
maximal quotient ofC4×#6014, #11716351, C8×Dic25, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(400, 11);