Finite Group Databasebeta
Cayley diagram

C2×#349 #2114

order128
nilpotency class3
isoclinismisoclinic class of #99
automorphismAut(G) = #72218347 (order 1024) · Inn(G) = C22⋊C4 · Out(G) = C23×D4
homologyAbelianization (H1) = C22×C8 · Schur multiplier (H2) = C23

Aliases

direct productC2×#349

Subgroups

subgroupG/H
centerC2×C4C22⋊C4
commutatorC22C22×C8
Frattini, cosocleC2×C8C23
socleC22C22⋊C8
prime radicalC24C8
LCSG ▷ C22 ▷ C2 ▷ C1
UCSC1 ◁ C2×C4 ◁ C22×C8 ◁ G
LECSG ▷ C2×C8 ▷ C4 ▷ C2 ▷ C1

118 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 18
transitive degreeμt(G) = 32

A minimal faithful permutation representation — 3 generators on 18 points:

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

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#7191, #7192, #7193, …
maximal normal subgroup of#7191, #7192, #7193, …
maximal quotient ofC2×#1314, #11418, C2×#1322, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 846);