Finite Group Databasebeta
Cayley diagram

C2×#519 #3426

order128
nilpotency class2
isoclinismisoclinic class of H(5,𝔽2)
automorphismAut(G) order 786432
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC2×#519

Subgroups

subgroupG/H
center, socleC23C24
commutatorC2C24×C4
Frattini, cosocleC22C25
prime radicalC24C23
LCSG ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C22 ▷ C1

744 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 22 points:

(1,2);(3,4,5,6)(8,12)(10,18)(13,15)(16,22);(7,8,11,12)(9,15,17,13)(10,14,18,19)(16,21,22,20);(7,9,11,17)(8,13,12,15)(10,16,18,22)(14,20,19,21);(7,10)(8,14)(9,16)(11,18)(12,19)(13,20)(15,21)(17,22)

Conjugacy classes & character table

68 conjugacy classes — view the full character table.

Relationships

Fitting subgroup ofC2×#519⋊C3, #11711017, #11711309, …
maximal subgroup of#8323, #10741, #10750, …
maximal normal subgroup of#8323, #10741, #10750, …
maximal quotient ofC2×#2274, C2×#2276, C4×#519, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2158);