Finite Group Databasebeta

C22⋊Dic997 #30630106

order15952
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊Dic997

Splittings

SylowC997 ⋊ C22⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D997
commutatorC2×C997C2×C4
Fitting, prime radicalC23×C997C2
socle, cosocleC22×C997C22
hypercenterC23D997
hypocenterC997C22⋊C4
LCSG ▷ C2×C997 ▷ C997
UCSC1 ◁ C22 ◁ C23

34 conjugacy classes of subgroups.

Full subgroup data →

Presentation

transitive degreeμt(G) = 7976

Polycyclic presentation:

2^4,997|a^2=d,b^a=bc,e^a=e^996

Conjugacy classes & character table

3994 conjugacy classes. The character table is too large to display.

Relationships

maximal subgroup of#44542215, #44542216, C22⋊C4×D997, …
maximal normal subgroup of#44542215, #44542216, C22⋊C4×D997, …
maximal quotient of#44542208, C22⋊#22547562, #44542216, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(15952, 18);