Finite Group Databasebeta

C7⋊C9×Dic115 #44394353

order28980
automorphism?
homologyAbelianization (H1) = C4×C9 · Schur multiplier (H2) = C1

Aliases

direct productC7⋊C9×Dic115
unambiguous semidirect productC23⋊(Dic5×C7⋊C9)
unambiguous semidirect product(C7×Dic115)⋊C9

Splittings

derived, HallC5×C7×C23 ⋊ C4×C9
HallC5×C23×C7⋊C9 ⋊ C4
HallC7×Dic115 ⋊ C9
HallC23×C7⋊C9 ⋊ Dic5
HallC5×C7⋊C9 ⋊ Dic23
HallC7×C23 ⋊ C9×Dic5
HallC5×C23 ⋊ C4×C7⋊C9
HallC5×C7 ⋊ C9×Dic23
SylowC23 ⋊ Dic5×C7⋊C9
SylowC7 ⋊ C9×Dic115
SylowC5 ⋊ C7⋊C9×Dic23

Subgroups

subgroupG/H
center, Frattini, hypercenterC2×C3ΓL(1,𝔽8)×D115
commutator, hypocenterC5×C7×C23C4×C9
Fitting, socle, prime radical, cosocleC2×C3×C5×C7×C23C2×C3
LCSG ▷ C5×C7×C23
UCSC1 ◁ C2×C3

72 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 28980

Conjugacy classes & character table

1770 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(28980, 22);