Finite Group Databasebeta
Cayley diagram

C2×#446 #2959

order128
nilpotency class2
isoclinismisoclinic class of #120
automorphismAut(G) order 8192
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C24

Aliases

direct productC2×#446

Subgroups

subgroupG/H
centerC22×C4C23
commutatorC22C23×C4
Frattini, cosocleC2×C4C24
socle, prime radicalC23C22×C4
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

200 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 18 points:

(1,2);(3,4)(5,10)(6,8)(7,9)(11,12,14,13,15,16,18,17);(3,5,7,6)(4,8,9,10);(3,6,7,5)(4,8,9,10)(11,13,14,16,15,17,18,12)

Conjugacy classes & character table

56 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#8167, #8207, #8209, …
maximal normal subgroup of#8167, #8207, #8209, …
maximal quotient ofC2×#1771, C2×#1770, C4×#446, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 1691);