Finite Group Databasebeta

D77⋊D61 #34037705

order18788
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD77⋊D61
unambiguous semidirect productD427⋊D11
unambiguous semidirect productD671⋊D7

Splittings

Fitting, socle, derived, HallC7×C11×C61 ⋊ C22
HallC11×C61 ⋊ C2×D7
HallC7×C61 ⋊ C2×D11
HallC7×C11 ⋊ C2×D61
SylowC61 ⋊ D7×D11
SylowC11 ⋊ D7×D61
SylowC7 ⋊ D11×D61

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC7×C11×C61C22
LCSG ▷ C7×C11×C61
UCSC1

40 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 4697

Polycyclic presentation:

2^2,7,11,61|d^a=d^10,e^a=e^60,c^b=c^6,d^b=d^10

Conjugacy classes & character table

1235 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(18788, 20);