Finite Group Databasebeta

C22⋊Dic1979 #44539674

order31664
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊Dic1979

Splittings

SylowC1979 ⋊ C22⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D1979
commutatorC2×C1979C2×C4
Fitting, prime radicalC23×C1979C2
socle, cosocleC22×C1979C22
hypercenterC23D1979
hypocenterC1979C22⋊C4
LCSG ▷ C2×C1979 ▷ C1979
UCSC1 ◁ C22 ◁ C23

34 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 15832

Polycyclic presentation:

2^4,1979|a^2=d,b^a=bc,e^a=e^1978

Conjugacy classes & character table

7922 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(31664, 18);