Finite Group Databasebeta
Cayley diagram

C22⋊Dic17 #63232

order272
isoclinismisoclinic class of Dic34
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊Dic17

Splittings

SylowC17 ⋊ C22⋊C4

Subgroups

subgroupG/H
center, FrattiniC22C2×D17
commutatorC2×C17C2×C4
Fitting, prime radicalC23×C17C2
socle, cosocleC22×C17C22
hypercenterC23D17
hypocenterC17C22⋊C4
LCSG ▷ C2×C17 ▷ C17
UCSC1 ◁ C22 ◁ C23

34 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 25
transitive degreeμt(G) = 136

A minimal faithful permutation representation — 2 generators on 25 points:

(1,2,4,6,8,10,12,14,16,17,15,13,11,9,7,5,3)(23,25);(2,3)(4,5)(6,7)(8,9)(10,11)(12,13)(14,15)(16,17)(18,19,20,21)(22,23)(24,25)

Polycyclic presentation:

2^4,17|a^2=c,b^a=bd,e^a=e^16

Conjugacy classes & character table

74 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#10587477, #10587505, #10587563, …
maximal normal subgroup of#10587477, #10587505, #10587563, …
maximal quotient ofC22⋊#3622, #10587502, #10587503, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(272, 19);