Finite Group Databasebeta

C4⋊Dic95 #13095089

order1520
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic95

Splittings

HallC5×C19 ⋊ C4⋊C4
SylowC19 ⋊ C4⋊Dic5
SylowC5 ⋊ C4⋊Dic19

Subgroups

subgroupG/H
center, FrattiniC22C2×D95
commutatorC2×C5×C19C2×C4
FittingC2×C4×C5×C19C2
socle, prime radical, cosocleC22×C5×C19C22
hypercenterC2×C4D95
hypocenterC5×C19C4⋊C4
LCSG ▷ C2×C5×C19 ▷ C5×C19
UCSC1 ◁ C22 ◁ C2×C4

52 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 1520

Polycyclic presentation:

2^4,5,19|a^2=d,b^2=c,b^a=bc,e^a=e^4,f^a=f^18

Conjugacy classes & character table

386 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1520, 73);