Finite Group Databasebeta
Cayley diagram

C2×#3361 #61298

order256
nilpotency class3
isoclinismisoclinic class of D4×D8
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3361

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#459C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×Q8 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

985 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);(4,7)(8,9)(11,12,15,19)(13,16,21,25)(14,17,22,18)(20,23,26,24);(3,4,6,7)(5,9,10,8)(11,13,15,21)(12,16,19,25)(14,20,22,26)(17,23,18,24);(12,17)(14,22)(16,23)(18,19)(20,26)(24,25);(3,5,6,10)(4,8,7,9)

Conjugacy classes & character table

70 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220379, #220451, #220479, …
maximal normal subgroup of#220379, #220451, #220479, …
maximal quotient ofC2×#22519, C2×#22543, C2×#22739, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54286);