Finite Group Databasebeta

C4⋊Dic521 #22552344

order8336
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C2

Aliases

unambiguous semidirect productC4⋊Dic521

Splittings

SylowC521 ⋊ C4⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D521
commutatorC2×C521C2×C4
FittingC2×C4×C521C2
socleC22×C521C22
hypercenterC2×C4D521
hypocenterC521C4⋊C4
LCSG ▷ C2×C521 ▷ C521
UCSC1 ◁ C22 ◁ C2×C4

26 conjugacy classes of subgroups.

Full subgroup data →

Presentation

Polycyclic presentation:

2^4,521|a^2=d,b^2=c,b^a=bc,e^a=e^520

Conjugacy classes & character table

2090 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#30659629, #30659630, #30659632, …
maximal normal subgroup of#30659629, #30659630, #30659632, …
maximal quotient of#30659615, C4⋊#16861960, #30659640, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(8336, 20);