Finite Group Databasebeta

C7⋊Dic1197 #45691537

order33516
automorphism?
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C7

Aliases

unambiguous semidirect productC7⋊Dic1197
unambiguous semidirect productC9⋊(C7⋊Dic133)
unambiguous semidirect productC19⋊(C7⋊Dic63)

Splittings

derived, HallC72×C9×C19 ⋊ C4
HallC72×C19 ⋊ Dic9
HallC72×C9 ⋊ Dic19
HallC9×C19 ⋊ C7⋊Dic7
SylowC72 ⋊ Dic171
SylowC19 ⋊ C7⋊Dic63
SylowC9 ⋊ C7⋊Dic133

Subgroups

subgroupG/H
center, hypercenterC2C7⋊D1197
commutator, hypocenterC72×C9×C19C4
FrattiniC2×C3C3⋊(C7⋊D133)
Fitting, cosocleC2×C72×C9×C19C2
socle, prime radicalC2×C3×C72×C19D3
LCSG ▷ C72×C9×C19
UCSC1 ◁ C2

180 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 33516

Polycyclic presentation:

2,3,7^2,19,2,3|a^2=f,b^3=g^2,b^a=b^2g,c^a=c^6,d^a=d^6,e^a=e^18,g^a=g^2

Conjugacy classes & character table

8382 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(33516, 335);