Finite Group Databasebeta
Cayley diagram

C2×#2505 #34748

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

Aliases

direct productC2×#2505

Subgroups

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

1243 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);(3,4,7,8)(5,10,9,6)(11,12,15,17)(13,14,18,16)(20,23)(21,25);(4,8)(5,9)(11,13,15,18)(12,16,17,14)(19,20)(21,24)(22,23)(25,26);(3,5,7,9)(4,6,8,10)(11,13)(12,14)(15,18)(16,17)(19,21,22,25)(20,24,23,26);(3,6)(4,9)(5,8)(7,10)(11,14)(12,13)(15,16)(17,18)(19,20)(21,24)(22,23)(25,26)

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#223292, #223356, #372456, …
maximal normal subgroup of#223292, #223356, #372456, …
maximal quotient ofC2×#13883, C2×#13896, C2×#14004, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27736);