Finite Group Databasebeta

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C13×C19×Dic21 #35208798

order20748
automorphism?
homologyAbelianization (H1) = C4×C13×C19 · Schur multiplier (H2) = C1

Aliases

direct productC13×C19×Dic21
unambiguous semidirect productC3⋊(C13×C19×Dic7)
unambiguous semidirect productC7⋊(Dic3×C13×C19)

Splittings

derived, HallC3×C7 ⋊ C4×C13×C19
HallC3×C7×C13×C19 ⋊ C4
HallC7×C13×C19 ⋊ Dic3
HallC3×C13×C19 ⋊ Dic7
HallC3×C7×C19 ⋊ C4×C13
HallC3×C7×C13 ⋊ C4×C19
HallC7×C19 ⋊ Dic3×C13
HallC7×C13 ⋊ Dic3×C19
HallC3×C19 ⋊ C13×Dic7
HallC3×C13 ⋊ C19×Dic7
SylowC7 ⋊ Dic3×C13×C19
SylowC3 ⋊ C13×C19×Dic7

Subgroups

subgroupG/H
center, hypercenterC2×C13×C19D21
commutator, hypocenterC3×C7C4×C13×C19
FrattiniC2C13×C19×D21
Fitting, socle, prime radicalC2×C3×C7×C13×C19C2
cosocleC2×C3×C7C2×C13×C19
LCSG ▷ C3×C7
UCSC1 ◁ C2×C13×C19

48 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 20748

Conjugacy classes & character table

5928 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20748, 26);