Finite Group Databasebeta

C7⋊Dic693 #34084654

order19404
automorphism?
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C7

Aliases

unambiguous semidirect productC7⋊Dic693
unambiguous semidirect productC9⋊(C7⋊Dic77)
unambiguous semidirect productC11⋊(C7⋊Dic63)

Splittings

derived, HallC72×C9×C11 ⋊ C4
HallC72×C11 ⋊ Dic9
HallC72×C9 ⋊ Dic11
HallC9×C11 ⋊ C7⋊Dic7
SylowC72 ⋊ Dic99
SylowC11 ⋊ C7⋊Dic63
SylowC9 ⋊ C7⋊Dic77

Subgroups

subgroupG/H
center, hypercenterC2C7⋊D693
commutator, hypocenterC72×C9×C11C4
FrattiniC2×C3C3⋊(C7⋊D77)
Fitting, cosocleC2×C72×C9×C11C2
socle, prime radicalC2×C3×C72×C11D3
LCSG ▷ C72×C9×C11
UCSC1 ◁ C2

180 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19404

Polycyclic presentation:

2,3,7^2,11,2,3|a^2=f,b^3=g^2,b^a=b^2g,c^a=c^6,d^a=d^6,e^a=e^10,g^a=g^2

Conjugacy classes & character table

4854 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19404, 145);