Finite Group Databasebeta
Cayley diagram

C2×#2605 #34860

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C26×C4

Aliases

direct productC2×#2605

Subgroups

subgroupG/H
center, socle, prime radicalC24C24
commutator, Frattini, cosocleC23C25
LCSG ▷ C23 ▷ C1
UCSC1 ◁ C24 ◁ G
LECSG ▷ C23 ▷ C1

1047 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 256

A minimal faithful permutation representation — 5 generators on 26 points:

(1,2);(11,12,15,14)(13,17,18,16)(19,20)(21,25)(22,24)(23,26);(4,7)(8,10)(13,18)(16,17)(19,20,22,24)(21,23,26,25);(3,4)(5,8)(6,7)(9,10)(11,13,15,18)(12,16,14,17)(19,20)(21,23)(22,24)(25,26);(3,5,6,9)(4,8,7,10)(11,14,15,12)(13,17,18,16)(19,21,22,26)(20,23,24,25)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#122166, #206938, #206942, …
maximal normal subgroup of#122166, #206938, #206942, …
maximal quotient ofC2×#13952, C2×#13964, C2×#14088, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27848);