Finite Group Databasebeta

C31⋊Dic155 #34063579

order19220
automorphism?
homologyAbelianization (H1) = C4 · Schur multiplier (H2) = C31

Aliases

unambiguous semidirect productC31⋊Dic155

Splittings

derived, HallC5×C312 ⋊ C4
SylowC312 ⋊ Dic5
SylowC5 ⋊ C31⋊Dic31

Subgroups

subgroupG/H
center, Frattini, hypercenterC2C5⋊(C31⋊D31)
commutator, hypocenterC5×C312C4
Fitting, socle, prime radical, cosocleC2×C5×C312C2
LCSG ▷ C5×C312
UCSC1 ◁ C2

204 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19220

Polycyclic presentation:

2,5,31^2,2|a^2=e,b^a=b^4,c^a=c^30,d^a=d^30

Conjugacy classes & character table

4808 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19220, 36);