Finite Group Databasebeta

C7⋊C9×Dic79 #34092553

order19908
automorphism?
homologyAbelianization (H1) = C4×C9 · Schur multiplier (H2) = C1

Aliases

direct productC7⋊C9×Dic79

Splittings

derived, HallC7×C79 ⋊ C4×C9
HallC7⋊C9×C79 ⋊ C4
HallC7×Dic79 ⋊ C9
SylowC79 ⋊ C4×C7⋊C9
SylowC7 ⋊ C9×Dic79

Subgroups

subgroupG/H
center, Frattini, hypercenterC2×C3ΓL(1,𝔽8)×D79
commutator, hypocenterC7×C79C4×C9
Fitting, socle, prime radical, cosocleC2×C3×C7×C79C2×C3
LCSG ▷ C7×C79
UCSC1 ◁ C2×C3

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19908

Conjugacy classes & character table

1230 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19908, 14);