Finite Group Databasebeta
Cayley diagram

C2×#557 #3476

order128
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 196608
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#557

Subgroups

subgroupG/H
center, socle, prime radicalC23C24
commutator, Frattini, cosocleC22C25
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C22 ▷ C1

524 conjugacy classes of subgroups.

Full subgroup data →

Presentation

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

A minimal faithful permutation representation — 5 generators on 18 points:

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

Conjugacy classes & character table

50 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofC2×#557⋊C3, #11711030, #11711034, …
maximal subgroup of#8374, #8390, #8392, …
maximal normal subgroup of#8374, #8390, #8392, …
maximal quotient ofC2×Q8×C4⋊C4, C2×#2351, C2×#2355, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2208);