Finite Group Databasebeta

#14514967

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

Aliases

No aliases for this group.

Subgroups

subgroupG/H
center, Frattini, socleC23C2×S5
commutatorC2×SL(2,𝔽5)C2×C4
Fitting, hypercenterC22×C4S5
prime radical, cosocleC22×SL(2,𝔽5)C22
hypocenterSL(2,𝔽5)C4⋊C4
LCSG ▷ C2×SL(2,𝔽5) ▷ SL(2,𝔽5)
UCSC1 ◁ C23 ◁ C22×C4

281 conjugacy classes of subgroups; only the 30 normal subgroups are shown.

normal subgroups only

This group has 281 conjugacy classes of subgroups — too many to draw. Only its 30 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) = 384

Permutation generators:

(1,4,2,3)(5,21,29,24,6,22,30,23)(7,18,43,15,8,17,44,16)(9,25,42,32,10,26,41,31)(11,20,28,36,12,19,27,35)(13,33,37,39,14,34,38,40)(45,46)(47,49,48,50)(51,68,75,69,52,67,76,70)(53,63,89,62,54,64,90,61)(55,72,88,77,56,71,87,78)(57,65,74,81,58,66,73,82)(59,80,83,86,60,79,84,85)(91,92);(1,50)(2,49)(3,47)(4,48)(5,81,34,83,27,53)(6,82,33,84,28,54)(7,51,35,80,37,73)(8,52,36,79,38,74)(9,76,43,71,39,59)(10,75,44,72,40,60)(11,70,31,57,24,77)(12,69,32,58,23,78)(13,55,30,89,25,85)(14,56,29,90,26,86)(15,67)(16,68)(17,65,41,64,20,88)(18,66,42,63,19,87)(21,61)(22,62)(45,91,46,92)

Conjugacy classes & character table

66 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1920, 240665);