Finite Group Databasebeta
Cayley diagram

C2×#550 #3467

order128
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 196608
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C29

Aliases

direct productC2×#550

Subgroups

subgroupG/H
center, socleC23C24
commutator, Frattini, cosocleC22C25
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C22 ▷ C1

868 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 14
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 14 points:

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

Conjugacy classes & character table

50 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofC2×C4⋊(#41⋊C3), #11711027, #11711033, …
maximal subgroup of#8361, #8384, #8385, …
maximal normal subgroup of#8361, #8384, #8385, …
maximal quotient ofC2×#2341, C2×Q8×C4⋊C4, C2×#2354, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2199);