Finite Group Databasebeta

#34285708

order20224
automorphism?
homologyAbelianization (H1) = C22×C42 · Schur multiplier (H2) = C27

Aliases

No aliases for this group.

Splittings

SylowC79 ⋊ #20355

Subgroups

subgroupG/H
centerC22C22×C22⋊Dic79
commutatorC22×C79C22×C42
FrattiniC24C23×D79
FittingC2×#519×C79C2
socleC22×C79C22×C22⋊C4
prime radical, cosocleC24×C79C24
hypercenterC2×#519D79
hypocenterC79#20355
LCSG ▷ C22×C79 ▷ C2×C79 ▷ C79
UCSC1 ◁ C22 ◁ C23×Q8 ◁ C2×#519

2018 conjugacy classes of subgroups; only the 987 normal subgroups are shown.

normal subgroups only

This group has 2018 conjugacy classes of subgroups — too many to draw. Only its 987 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) = 5056

Polycyclic presentation:

2^8,79|a^2=f,b^2=g,c^2=h,d^2=h,b^a=be,e^a=eh,i^a=i^78,f^b=fh,d^c=dh

Conjugacy classes & character table

2734 conjugacy classes. The character table is too large to display.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(20224, 167007);