Finite Group Databasebeta

C2×#139742 #72258029

order1024
nilpotency class4
automorphism?
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#139742

Subgroups

subgroupG/H
center, socleC22#9495
commutatorC22×D4C23×C4
Frattini, cosocleC23×D4C24
prime radicalC2×#23897C2
LCSG ▷ C22×D4 ▷ C23 ▷ C2 ▷ C1
UCSC1 ◁ C22 ◁ C24 ◁ C24×D4 ◁ G
LECSG ▷ C23×D4 ▷ C23 ▷ C2 ▷ C1

5201 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 4 generators on 18 points:

(3,4)(5,8)(6,9)(7,10)(11,14)(12,15)(13,16)(17,18);(1,2);(3,5)(4,8,10,16)(6,12,14,18)(7,13)(9,15)(11,17);(4,9,10,11)(8,15)(12,18)(16,17)

Conjugacy classes & character table

82 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofC2×#72210342, #72258316, C2×#72216344, …
maximal normal subgroup ofC2×#72210342, #72258316, C2×#72216344, …
maximal quotient of#72312226, #72337798, #72338923, …

GAP

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

gap> G := Group((3,4)(5,8)(6,9)(7,10)(11,14)(12,15)(13,16)(17,18), (1,2), (3,5)(4,8,10,16)(6,12,14,18)(7,13)(9,15)(11,17), (4,9,10,11)(8,15)(12,18)(16,17));