Finite Group Databasebeta
Cayley diagram

C2×#3076 #60479

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

Aliases

direct productC2×#3076

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

1081 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);(3,4,6,8)(5,9,10,7)(11,12)(13,20)(14,18)(15,23)(16,19)(17,21)(22,25)(24,26);(3,5,6,10)(4,7,8,9);(11,13)(12,17)(14,21)(15,24)(16,22)(18,25)(19,26)(20,23);(11,14,16,15)(12,18,19,23)(13,21,22,24)(17,25,26,20)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#111768, #111784, #111868, …
maximal normal subgroup of#111768, #111784, #111868, …
maximal quotient ofC2×#20645, C2×#20872, C2×#21032, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53467);