Finite Group Databasebeta

C2×2−1+4⋊A5 #72267115

order3840
automorphism?
homologyAbelianization (H1) = C2 · Schur multiplier (H2) = C2

Aliases

direct productC2×2−1+4⋊A5

Splittings

FittingC2×2−1+4 ⋊ A5

Subgroups

subgroupG/H
center, socle, hypercenterC22#11757163
commutator, hypocenter2−1+4⋊A5C2
FrattiniC2C2×#11757163
FittingC2×2−1+4A5
cosocle2−1+4C2×A5
LCSG ▷ 2−1+4⋊A5
UCSC1 ◁ C22

341 conjugacy classes of subgroups; only the 9 normal subgroups are shown.

normal subgroups only

This group has 341 conjugacy classes of subgroups — too many to draw. Only its 9 normal subgroups are shown.

Dotted edges: containments with no intermediate normal subgroup — omitted non-normal subgroups may lie between.

Full subgroup data →

Presentation

minimal degreeμ(G) = 34
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 2 generators on 34 points:

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

Conjugacy classes & character table

32 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#72267138, #72267349, #72269016, …

GAP

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

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