Finite Group Databasebeta

C4⋊Dic1237 #34090113

order19792
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic1237

Splittings

SylowC1237 ⋊ C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D1237
commutatorC2×C1237C2×C4
FittingC2×C4×C1237C2
socle, prime radical, cosocleC22×C1237C22
hypercenterC2×C4D1237
hypocenterC1237C4⋊C4
LCSG ▷ C2×C1237 ▷ C1237
UCSC1 ◁ C22 ◁ C2×C4

26 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19792

Polycyclic presentation:

2^4,1237|a^2=d,b^2=c,b^a=bc,e^a=e^1236

Conjugacy classes & character table

4954 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19792, 20);