Finite Group Databasebeta
Cayley diagram

C2×#2494 #34785

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

Aliases

direct productC2×#2494

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#97392, #97602, #98524, …
maximal normal subgroup of#97392, #97602, #98524, …
maximal quotient ofC2×#13875, C2×#13936, C2×#13974, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 27773);