Finite Group Databasebeta

C5×#12774 #11935494

order1280
nilpotency class4
isoclinismisoclinic class of #2202
automorphism?
homologyAbelianization (H1) = C22×C4×C5 · Schur multiplier (H2) = C25

Aliases

direct productC5×#12774

Subgroups

subgroupG/H
center, socleC22×C5B(4,𝔽2)
commutatorC2×Q8C22×C4×C5
Frattini, cosocleC22×Q8C23×C5
prime radicalC2×C5×H(3,𝔽4)C2
LCSG ▷ C2×Q8 ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C22×C5 ◁ C23×C5 ◁ C22×C5×Q8 ◁ G

932 conjugacy classes of subgroups; only the 142 normal subgroups are shown.

normal subgroups only

This group has 932 conjugacy classes of subgroups — too many to draw. Only its 142 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) = 25
transitive degreeμt(G) = 160

A minimal faithful permutation representation — 3 generators on 25 points:

(1,2,3,4,5)(6,7)(8,9)(10,11,14,17,15,20,13,19)(12,16,23,24,21,18,22,25);(11,16)(12,21)(13,14)(17,24)(18,20)(19,25);(7,9)(11,17)(13,14)(16,24)(18,25)(19,20)(22,23)

Conjugacy classes & character table

170 conjugacy classes — view the full character table.

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1280, 5762);