Finite Group Databasebeta

C4⋊Dic1231 #34089088

order19696
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic1231

Splittings

SylowC1231 ⋊ C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D1231
commutatorC2×C1231C2×C4
FittingC2×C4×C1231C2
socle, prime radical, cosocleC22×C1231C22
hypercenterC2×C4D1231
hypocenterC1231C4⋊C4
LCSG ▷ C2×C1231 ▷ C1231
UCSC1 ◁ C22 ◁ C2×C4

26 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19696

Polycyclic presentation:

2^4,1231|a^2=d,b^2=c,b^a=bc,e^a=e^1230

Conjugacy classes & character table

4930 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19696, 20);