Finite Group Databasebeta

#34092559

order19908
automorphism?
homologyAbelianization (H1) = C4×C9 · Schur multiplier (H2) = C1

Aliases

No aliases for this group.

Splittings

derived, HallC7×C79 ⋊ C4×C9
Hall#19097322 ⋊ C4
HallDic7×C79 ⋊ C9
SylowC79 ⋊ Dic7⋊C9
HallDic7 ⋊ C79⋊C9
SylowC7 ⋊ C4×C79⋊C9

Subgroups

subgroupG/H
center, Frattini, hypercenterC2×C3#15693303
commutator, hypocenterC7×C79C4×C9
Fitting, socle, prime radical, cosocleC2×C3×C7×C79C2×C3
LCSG ▷ C7×C79
UCSC1 ◁ C2×C3

36 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 19908

Polycyclic presentation:

2,3,7,79,2,3|a^2=e,b^3=f,c^a=c^6,c^b=c^2,d^b=d^55

Conjugacy classes & character table

822 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(19908, 20);