Finite Group Databasebeta

(C2×#11759967)⋊Q8 #30657690

order16448
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C22×C4

Aliases

unambiguous semidirect product(C2×#11759967)⋊Q8

Splittings

FittingC2×Q8×C257 ⋊ C4
SylowC257 ⋊ #391

Subgroups

subgroupG/H
center, FrattiniC22C22×#11759967
commutator, socleC22×C257C22×C4
FittingC2×Q8×C257C4
prime radical, cosocleC22×D257C23
hypercenterC2×Q8#11759967
hypocenterC257#391
LCSG ▷ C22×C257 ▷ C257
UCSC1 ◁ C22 ◁ C2×Q8

186 conjugacy classes of subgroups; only the 64 normal subgroups are shown.

normal subgroups only

This group has 186 conjugacy classes of subgroups — too many to draw. Only its 64 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) = 4112

Polycyclic presentation:

2^6,257|a^2=f,b^2=def,c^2=e,b^a=bd,c^a=ce,g^a=g^16,g^b=g^241,g^f=g^256

Conjugacy classes & character table

668 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1502);