Finite Group Databasebeta
Cayley diagram

C2×#2575 #34845

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 524288
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C27

Aliases

direct productC2×#2575

Subgroups

subgroupG/H
center, socleC24C24
commutator, Frattini, cosocleC23C25
prime radicalC25C23
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1091 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)(11,12,15,16)(13,14,17,18)(21,25)(24,26);(5,10)(8,9)(12,16)(13,17)(19,20,23,22)(21,24,25,26);(3,5)(4,8)(6,9)(7,10)(11,13)(12,14)(15,17)(16,18)(19,21)(20,24)(22,26)(23,25);(3,6,7,4)(5,9,10,8)(11,14)(12,13)(15,18)(16,17)(19,22,23,20)(21,26,25,24)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#208552, #217160, #222921, …
maximal normal subgroup of#208552, #217160, #222921, …
maximal quotient ofC2×#13917, C2×#13950, C2×#13983, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27833);