Finite Group Databasebeta
Cayley diagram

C2×#3357 #61250

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

Aliases

direct productC2×#3357

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

965 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);(3,4,7,6)(5,9,10,8)(11,12)(13,20)(14,18)(15,17)(16,21)(19,23)(22,24)(25,26);(3,5)(4,8)(6,9)(7,10)(11,13,14,21)(12,16,18,20)(15,22,23,26)(17,25,19,24);(3,6,7,4)(5,9,10,8)(12,17)(13,21)(15,23)(16,24)(18,19)(20,25);(5,10)(8,9)(12,18)(13,21)(17,19)(22,26)

Conjugacy classes & character table

58 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220422, #220794, #220866, …
maximal normal subgroup of#220422, #220794, #220866, …
maximal quotient ofC2×#22502, C2×#22503, C2×#22621, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 54238);