Finite Group Databasebeta

C31×#440 #14520621

order1984
nilpotency class3
isoclinismisoclinic class of AGL(1,ℤ/8)
automorphism?
homologyAbelianization (H1) = C22×C4×C31 · Schur multiplier (H2) = C22

Aliases

direct productC31×#440

Subgroups

subgroupG/H
center, socleC22×C31C2×D4
commutatorC4C22×C4×C31
Frattini, cosocleC2×C4C23×C31
prime radicalC2×D4×C31C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C31 ◁ C42×C31 ◁ G

120 conjugacy classes of subgroups; only the 70 normal subgroups are shown.

normal subgroups only

This group has 120 conjugacy classes of subgroups — too many to draw. Only its 70 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) = 43
transitive degreeμt(G) = 992

A minimal faithful permutation representation — 3 generators on 43 points:

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

Conjugacy classes & character table

682 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofD31×#440, #16854506, #16854516, …
maximal subgroup ofC2×C31×#440, C31×#2943, C4×C31×AGL(1,ℤ/8), …
maximal normal subgroup ofC2×C31×#440, C31×#2943, C4×C31×AGL(1,ℤ/8), …
maximal quotient ofC31×SD16⋊C8, C31×#1585, C31×#1588, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(1984, 121);