Finite Group Databasebeta

(C31⋊C9)⋊C25 #20294458

order6975
automorphism?
homologyAbelianization (H1) = C9×C25 · Schur multiplier (H2) = C1

Aliases

unambiguous semidirect product(C31⋊C9)⋊C25
unambiguous semidirect product(C31⋊C25)⋊C9

Splittings

derived, SylowC31 ⋊ C9×C25
HallC31⋊C25 ⋊ C9
HallC31⋊C9 ⋊ C25

Subgroups

subgroupG/H
center, Frattini, hypercenterC3×C5(C31⋊C3)⋊C5
commutator, hypocenterC31C9×C25
Fitting, socleC3×C5×C31C3×C5
LCSG ▷ C31
UCSC1 ◁ C3×C5

18 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

3,5,31,3,5|a^3=d,b^5=e,c^a=c^25,c^b=c^16

Conjugacy classes & character table

255 conjugacy classes — view the full character table.

Relationships

maximal subgroup of(D31⋊C9)⋊C25, C2×(C31⋊C9)⋊C25, C22⋊((C31⋊C9)⋊C25)
maximal normal subgroup of(D31⋊C9)⋊C25, C2×(C31⋊C9)⋊C25
maximal quotient ofC2×(C31⋊C9)⋊C25, C22⋊((C31⋊C9)⋊C25)

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(6975, 2);