Finite Group Databasebeta

D75⋊D69 #35207971

order20700
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productD75⋊D69

Splittings

Fitting, derived, HallC32×C23×C25 ⋊ C22
HallC23×C25 ⋊ D32
HallC32×C25 ⋊ C2×D23
HallC32×C23 ⋊ C2×D25
SylowC25 ⋊ D3×D69
SylowC23 ⋊ (C3⋊D3)⋊D25
SylowC32 ⋊ D23×D25

Subgroups

subgroupG/H
center, hypercenterC1G
commutator, Fitting, cosocle, hypocenterC32×C23×C25C22
FrattiniC5D15⋊D69
socleC32×C5×C23C2×D5
LCSG ▷ C32×C23×C25
UCSC1

132 conjugacy classes of subgroups; only the 34 normal subgroups are shown.

normal subgroups only

This group has 132 conjugacy classes of subgroups — too many to draw. Only its 34 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

transitive degreeμt(G) = 3450

Polycyclic presentation:

2^2,3^2,5,23,5|e^5=g^4,c^a=c^2,d^a=d^2,f^a=f^22,d^b=d^2,e^b=e^4g,g^b=g^4

Conjugacy classes & character table

1368 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20700, 87);