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Cayley diagram

C22×D31 #6943

order248
isoclinismisoclinic class of D31
automorphismAut(G) = S4×AGL(1,𝔽31) (order 22320) · Inn(G) = D31 · Out(G) = C3×C5×S4
homologyAbelianization (H1) = C23 · Schur multiplier (H2) = C23

Aliases

direct productC22×D31
unambiguous semidirect productC31⋊C23
unambiguous semidirect product(C2×C31)⋊C22

Splittings

Fitting, socleC22×C31 ⋊ C2
derived, SylowC31 ⋊ C23

Subgroups

subgroupG/H
center, hypercenterC22D31
commutator, cosocle, hypocenterC31C23
FrattiniC1G
Fitting, socleC22×C31C2
LCSG ▷ C31
UCSC1 ◁ C22

32 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 35
transitive degreeμt(G) = 124

A minimal faithful permutation representation — 3 generators on 35 points:

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

Conjugacy classes & character table

68 conjugacy classes — view the full character table.

Relationships

maximal subgroup of(C2×D31)⋊C4, C2×C4×D31, C2×D124, …
maximal normal subgroup of(C2×D31)⋊C4, C2×C4×D31, C2×D124, …
maximal quotient ofC2×Dic62, C2×C4×D31, C2×D124, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(248, 11);