Finite Group Databasebeta

C2×C4×C22⋊D257 #30657196

order16448
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C26

Aliases

direct productC2×C4×C22⋊D257

Splittings

FittingC23×C4×C257 ⋊ C2
SylowC257 ⋊ C2×C4×D4

Subgroups

subgroupG/H
centerC22×C4C2×D257
commutatorC2×C257C23×C4
FrattiniC22C23×D257
FittingC23×C4×C257C2
socleC23×C257C23
prime radicalC22×C22⋊D257C2
cosocleC22×C257C24
hypercenterC23×C4D257
hypocenterC257C2×C4×D4
LCSG ▷ C2×C257 ▷ C257
UCSC1 ◁ C22×C4 ◁ C23×C4

426 conjugacy classes of subgroups; only the 183 normal subgroups are shown.

normal subgroups only

This group has 426 conjugacy classes of subgroups — too many to draw. Only its 183 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) = 8224

Conjugacy classes & character table

4136 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#45662636, #45662656, C4×#22551506, …
maximal normal subgroup of#45662636, #45662656, C4×#22551506, …
maximal quotient ofC2×C4×C22⋊Dic257, C2×C4×#16861595, C2×C4×#16861597, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1008);