Finite Group Databasebeta
Cayley diagram

C2×D109 #89138

order436
isoclinismisoclinic class of D109
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD218
direct productC2×D109
unambiguous semidirect productC109⋊C22
unambiguous semidirect product(C2×C109)⋊C2

Splittings

Fitting, socleC2×C109 ⋊ C2
derived, SylowC109 ⋊ C22

Subgroups

subgroupG/H
center, hypercenterC2D109
commutator, cosocle, hypocenterC109C22
FrattiniC1G
Fitting, socleC2×C109C2
LCSG ▷ C109
UCSC1 ◁ C2

10 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 111
transitive degreeμt(G) = 218

A minimal faithful permutation representation — 2 generators on 111 points:

(1,2)(3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,92,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,111);(4,111)(5,110)(6,109)(7,108)(8,107)(9,106)(10,105)(11,104)(12,103)(13,102)(14,101)(15,100)(16,99)(17,98)(18,97)(19,96)(20,95)(21,94)(22,93)(23,92)(24,91)(25,90)(26,89)(27,88)(28,87)(29,86)(30,85)(31,84)(32,83)(33,82)(34,81)(35,80)(36,79)(37,78)(38,77)(39,76)(40,75)(41,74)(42,73)(43,72)(44,71)(45,70)(46,69)(47,68)(48,67)(49,66)(50,65)(51,64)(52,63)(53,62)(54,61)(55,60)(56,59)(57,58)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC4×D109, D436, C22⋊D109, …
maximal normal subgroup ofC4×D109, D436, C22⋊D109, …
maximal quotient ofDic218, C4×D109, D436, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(436, 4);