Finite Group Databasebeta

C4⋊Dic439 #20296309

order7024
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic439

Splittings

SylowC439 ⋊ C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D439
commutatorC2×C439C2×C4
FittingC2×C4×C439C2
socleC22×C439C22
hypercenterC2×C4D439
hypocenterC439C4⋊C4
LCSG ▷ C2×C439 ▷ C439
UCSC1 ◁ C22 ◁ C2×C4

26 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^4,439|a^2=d,b^2=c,b^a=bc,e^a=e^438

Conjugacy classes & character table

1762 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#28380664, #28380665, #28380667, …
maximal normal subgroup of#28380664, #28380665, #28380667, …
maximal quotient ofC439⋊#95, C4⋊(C439⋊C8), #28380675, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(7024, 20);