Finite Group Databasebeta
Cayley diagram

C2×#2495 #34777

order256
nilpotency class2
isoclinismisoclinic class of #2403
automorphismAut(G) order 1048576
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2495

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97389, #97618, #98510, …
maximal normal subgroup of#97389, #97618, #98510, …
maximal quotient ofC2×#13875, C2×#13921, C2×#13973, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27765);