Finite Group Databasebeta

C22⋊D2221 #31801769

order17768
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC22⋊D2221

Splittings

FittingC22×C2221 ⋊ C2
SylowC2221 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×D2221
commutator, socle, cosocleC2×C2221C22
FittingC22×C2221C2
hypercenterC22D2221
hypocenterC2221D4
LCSG ▷ C2×C2221 ▷ C2221
UCSC1 ◁ C2 ◁ C22

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 8884

Polycyclic presentation:

2^3,2221|b^a=bc,d^b=d^2220

Conjugacy classes & character table

4445 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup ofD4×D2221, C2×C22⋊D2221, #48001106, …
maximal normal subgroup ofD4×D2221, C2×C22⋊D2221, #48001106, …
maximal quotient of#48001084, C22⋊Dic2221, #48001086, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(17768, 9);