Finite Group Databasebeta
Cayley diagram

C2×#541 #3453

order128
nilpotency class2
isoclinismisoclinic class of #534
automorphismAut(G) order 65536
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#541

Subgroups

subgroupG/H
center, socleC23C24
commutator, Frattini, cosocleC22C25
prime radicalC24C23
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C23 ◁ G
LECSG ▷ C22 ▷ C1

502 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

A minimal faithful permutation representation — 5 generators on 26 points:

(1,2);(5,9)(7,10)(11,12,15,18)(13,16,21,19)(14,22,23,17)(20,25,26,24);(3,4,6,8)(5,7,9,10)(11,12)(13,19)(14,17)(15,18)(16,21)(20,25)(22,23)(24,26);(3,5)(4,7)(6,9)(8,10)(11,13)(12,16)(14,20)(15,21)(17,24)(18,19)(22,25)(23,26);(11,14,15,23)(12,17,18,22)(13,20,21,26)(16,24,19,25)

Conjugacy classes & character table

44 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#8327, #8521, #8527, …
maximal normal subgroup of#8327, #8521, #8527, …
maximal quotient ofC2×#2314, C2×#2320, C2×#2323, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(128, 2185);