Finite Group Databasebeta
Cayley diagram

C2×#3329 #61149

order256
nilpotency class3
isoclinismisoclinic class of #3264
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3329

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC2×#555C2
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×C4×D4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1073 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)(11,12,16,19)(13,17,15,24)(14,21,23,25)(18,22,26,20);(3,5)(4,7)(6,10)(8,9)(11,13,16,15)(12,17,19,24)(14,22,23,20)(18,21,26,25);(11,14,16,23)(12,18,19,26)(13,20,15,22)(17,25,24,21);(5,10)(7,9)(12,19)(17,24)(18,26)(21,25)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220404, #220776, #220848, …
maximal normal subgroup of#220404, #220776, #220848, …
maximal quotient ofC2×#22430, C2×#22503, C2×#22585, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54137);