Finite Group Databasebeta
Cayley diagram

C2×#3299 #61117

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

Aliases

direct productC2×#3299

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC22×D4D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×D4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1079 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)(11,12,15,18)(13,19,21,26)(14,22,24,17)(16,23,25,20);(3,5)(4,7)(6,10)(8,9);(11,13,15,21)(12,16,18,25)(14,23,24,20)(17,26,22,19);(5,10)(7,9)

Conjugacy classes & character table

70 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220255, #220291, #220367, …
maximal normal subgroup of#220255, #220291, #220367, …
maximal quotient ofC2×D4×#103, C2×#22487, C2×#22575, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54105);