Finite Group Databasebeta
Cayley diagram

D212 #88327

order424
isoclinismisoclinic class of Dic106
automorphism?
homologyAbelianization (H1) = C22 · Schur multiplier (H2) = C2

Aliases

dihedralD212
unambiguous semidirect productC4⋊D53

Splittings

FittingC4×C53 ⋊ C2
SylowC53 ⋊ D4

Subgroups

subgroupG/H
center, FrattiniC2C2×D53
commutator, socle, cosocleC2×C53C22
FittingC4×C53C2
hypercenterC4D53
hypocenterC53D4
LCSG ▷ C2×C53 ▷ C53
UCSC1 ◁ C2 ◁ C4

16 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 57
transitive degreeμt(G) = 212

A minimal faithful permutation representation — 2 generators on 57 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);(2,4)(6,57)(7,56)(8,55)(9,54)(10,53)(11,52)(12,51)(13,50)(14,49)(15,48)(16,47)(17,46)(18,45)(19,44)(20,43)(21,42)(22,41)(23,40)(24,39)(25,38)(26,37)(27,36)(28,35)(29,34)(30,33)(31,32)

Polycyclic presentation:

2^3,53|b^2=c,b^a=bc,d^a=d^52

Conjugacy classes & character table

109 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#11719913, D424, #11719922, …
maximal normal subgroup of#11719913, D424, #11719922, …
maximal quotient of#11719913, D424, Dic212, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(424, 6);