Finite Group Databasebeta

C2×#22551654 #30657725

order16448
automorphism?
homologyAbelianization (H1) = C22×C4 · Schur multiplier (H2) = C24

Aliases

direct productC2×#22551654
unambiguous semidirect productD257⋊#102

Splittings

FittingC2×D4×C257 ⋊ C4
SylowC257 ⋊ C2×#102

Subgroups

subgroupG/H
centerC22C22⋊#11759967
commutatorC4×C257C22×C4
FrattiniC4C22×#11759967
FittingC2×D4×C257C4
socleC22×C257C22⋊C4
prime radicalC2×D4×D257C2
cosocleC4×D257C23
hypercenterC2×D4#11759967
hypocenterC257C2×#102
LCSG ▷ C4×C257 ▷ C2×C257 ▷ C257
UCSC1 ◁ C22 ◁ C2×C4 ◁ C2×D4

202 conjugacy classes of subgroups; only the 60 normal subgroups are shown.

normal subgroups only

This group has 202 conjugacy classes of subgroups — too many to draw. Only its 60 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

Conjugacy classes & character table

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

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(16448, 1537);