Finite Group Databasebeta
Cayley diagram

C2×#2612 #34870

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

Aliases

direct productC2×#2612

Subgroups

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

1015 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);(3,4)(5,9)(6,7)(8,10)(19,20,23,26)(21,25,22,24);(4,7)(8,9)(11,12,14,16)(13,15,17,18)(19,21,23,22)(20,24,26,25);(3,4)(5,8)(6,7)(9,10)(11,12)(13,15)(14,16)(17,18)(19,22,23,21)(20,25,26,24);(3,5,6,10)(4,8,7,9)(11,13,14,17)(12,15,16,18)(19,20)(21,24)(22,25)(23,26)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#131478, #206935, #215635, …
maximal normal subgroup of#131478, #206935, #215635, …
maximal quotient ofC2×#13963, C2×#14087, C2×#14088, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27858);