Finite Group Databasebeta

D21⋊D321 #41004141

order26964
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD21⋊D321

Splittings

Fitting, socle, derived, HallC32×C7×C107 ⋊ C22
HallC32×C107 ⋊ C2×D7
HallC7×C107 ⋊ D32
SylowC107 ⋊ (C3⋊D3)⋊D7
HallC32×C7 ⋊ C2×D107
SylowC32 ⋊ D7×D107
SylowC7 ⋊ D3×D321

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC32×C7×C107C22
LCSG ▷ C32×C7×C107
UCSC1

88 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 4494

Polycyclic presentation:

2^2,3^2,7,107|c^a=c^2,d^a=d^2,f^a=f^106,d^b=d^2,e^b=e^6

Conjugacy classes & character table

1935 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(26964, 90);