Finite Group Databasebeta

C4⋊Dic421 #20269751

order6736
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic421

Splittings

SylowC421 ⋊ C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D421
commutatorC2×C421C2×C4
FittingC2×C4×C421C2
socleC22×C421C22
hypercenterC2×C4D421
hypocenterC421C4⋊C4
LCSG ▷ C2×C421 ▷ C421
UCSC1 ◁ C22 ◁ C2×C4

26 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^4,421|a^2=d,b^2=c,b^a=bc,e^a=e^420

Conjugacy classes & character table

1690 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#27212287, #27212288, #27212290, …
maximal normal subgroup of#27212287, #27212288, #27212290, …
maximal quotient of#27212273, C4⋊#16809890, #27212298, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(6736, 20);