Finite Group Databasebeta
Cayley diagram

A42 #3841

order144
isoclinismisoclinic class of A42
automorphismAut(G) = #10596770⋊C2 (order 1152) · Inn(G) = G · Out(G) = D4
homologyAbelianization (H1) = C32 · Schur multiplier (H2) = C22×C3

Aliases

direct productA42
unambiguous semidirect product(C22×A4)⋊C3
unambiguous semidirect product(C22⋊A4)⋊C3

Splittings

Fitting, socle, derived, SylowC24 ⋊ C32

Subgroups

subgroupG/H
center, Frattini, hypercenterC1G
commutator, Fitting, socle, cosocle, hypocenterC24C32
LCSG ▷ C24
UCSC1

41 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 8
transitive degreeμt(G) = 12

A minimal faithful permutation representation — 2 generators on 8 points:

(1,4)(2,3)(6,7,8);(2,3,4)(5,8)(6,7)

Conjugacy classes & character table

16 conjugacy classes — view the full character table.

Relationships

derived subgroup ofA4⋊S4, A4⋊SL(2,ℤ/4), #10596770, …
maximal subgroup ofA4×S4, #1020⋊C3, A4⋊S4, …
maximal normal subgroup ofA4×S4, #1020⋊C3, A4⋊S4, …
maximal quotient ofA4×SL(2,𝔽3), Ω+(4,𝔽3), C2×A42, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(144, 184);