Finite Group Databasebeta

C2×D162 #72225592

order2048
nilpotency class4
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C210

Aliases

direct productC2×D162

Subgroups

subgroupG/H
center, socleC23D82
commutator, Frattini, cosocleC82C25
LCSG ▷ C82 ▷ C42 ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ C2×C42 ◁ C2×C82 ◁ G
LECSG ▷ C82 ▷ C42 ▷ C22 ▷ C1

4976 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 512

A minimal faithful permutation representation — 5 generators on 34 points:

(20,24)(21,25)(22,28)(26,34)(27,32)(29,33)(30,31);(4,8)(5,9)(6,12)(10,18)(11,16)(13,17)(14,15)(20,24)(21,25)(22,28)(26,34)(27,32)(29,33)(30,31);(3,4,9,15,6,10,13,16,7,11,17,18,12,14,5,8)(19,20,25,31,22,26,29,32,23,27,33,34,28,30,21,24);(19,20,25,31,22,26,29,32,23,27,33,34,28,30,21,24);(1,2)

Conjugacy classes & character table

242 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72226981, #72227092, #72227114
maximal normal subgroup of#72226981, #72227092, #72227114
maximal quotient of#72225593

GAP

Past the SmallGroups library coverage — no SmallGroups id. Construct it from a minimal faithful permutation representation:

gap> G := Group((20,24)(21,25)(22,28)(26,34)(27,32)(29,33)(30,31), (4,8)(5,9)(6,12)(10,18)(11,16)(13,17)(14,15)(20,24)(21,25)(22,28)(26,34)(27,32)(29,33)(30,31), (3,4,9,15,6,10,13,16,7,11,17,18,12,14,5,8)(19,20,25,31,22,26,29,32,23,27,33,34,28,30,21,24), (19,20,25,31,22,26,29,32,23,27,33,34,28,30,21,24), (1,2));