Finite Group Databasebeta

C22⋊GL(2,𝔽5) #14514930

order1920
automorphism?
homologyAbelianization (H1) = C2×C4 · Schur multiplier (H2) = C22

Aliases

unambiguous semidirect productC22⋊GL(2,𝔽5)

Subgroups

subgroupG/H
center, FrattiniC2×C4C2×S5
commutatorC2×SL(2,𝔽5)C2×C4
Fitting, hypercenterC22×C4S5
socleC22C2×A5⋊C4
prime radicalC22×#6732C2
cosocleC2×#6732C22
hypocenterSL(2,𝔽5)C22⋊C4
LCSG ▷ C2×SL(2,𝔽5) ▷ SL(2,𝔽5)
UCSC1 ◁ C2×C4 ◁ C22×C4

433 conjugacy classes of subgroups; only the 24 normal subgroups are shown.

normal subgroups only

This group has 433 conjugacy classes of subgroups — too many to draw. Only its 24 normal subgroups are shown.

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

Full subgroup data →

Presentation

transitive degreeμt(G) = 96

Permutation generators:

(1,2)(3,22,14,25)(4,21,13,26)(5,15,7,11)(6,16,8,12)(9,19,10,20)(17,18)(23,24)(29,47,40,52)(30,48,39,51)(31,42,33,38)(32,41,34,37)(35,46,36,45);(1,27)(2,28)(3,38,5,36,17,34,21,40,20,50,4,37,6,35,18,33,22,39,19,49)(7,48,13,45,23,29,12,31,10,43,8,47,14,46,24,30,11,32,9,44)(15,51,16,52)(25,42,26,41)

Conjugacy classes & character table

66 conjugacy classes — view the full character table.

Relationships

maximal subgroup ofD4×GL(2,𝔽5), #72275838
maximal normal subgroup ofD4×GL(2,𝔽5)
maximal quotient of#72276774, #72276971

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 240628);