Finite Group Databasebeta
Cayley diagram

C2×#3107 #60534

order256
nilpotency class3
isoclinismisoclinic class of #447
automorphismAut(G) order 131072
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3107

Subgroups

subgroupG/H
centerC22×C4C2×D4
commutator, Frattini, cosocleC2×C4C25
socleC23C22×D4
prime radicalC22×#41C22
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1085 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

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

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111766, #111778, #111862, …
maximal normal subgroup of#111766, #111778, #111862, …
maximal quotient ofC2×#20737, C2×#21114, C2×#21116, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53522);