Finite Group Databasebeta

C2×#22551565 #30657228

order16448
automorphism?
homologyAbelianization (H1) = C24 · Schur multiplier (H2) = C26

Aliases

direct productC2×#22551565

Splittings

FittingC2×C22⋊C4×C257 ⋊ C2
SylowC257 ⋊ C2×#121

Subgroups

subgroupG/H
centerC23C22×D257
commutator, cosocleC22×C257C24
FrattiniC22C23×D257
FittingC2×C22⋊C4×C257C2
socleC23×C257C23
hypercenterC2×C22⋊C4D257
hypocenterC257C2×#121
LCSG ▷ C22×C257 ▷ C257
UCSC1 ◁ C23 ◁ C2×C22⋊C4

426 conjugacy classes of subgroups; only the 127 normal subgroups are shown.

normal subgroups only

This group has 426 conjugacy classes of subgroups — too many to draw. Only its 127 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

2588 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#45662678, C4×#22551565, #45666832, …
maximal normal subgroup of#45662678, C4×#22551565, #45666832, …
maximal quotient ofC2×#30656596, C2×#30656613, C2×#30656615, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1040);