Finite Group Databasebeta
Cayley diagram

C2×#2977 #60225

order256
nilpotency class2
isoclinismisoclinic class of D42
automorphismAut(G) order 131072
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C28

Aliases

direct productC2×#2977

Subgroups

subgroupG/H
centerC22×C4C24
commutatorC22C24×C4
Frattini, cosocleC2×C4C25
socleC23C23×C4
prime radicalC2×#525C2
LCSG ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1181 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 64

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

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

Conjugacy classes & character table

100 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#107368, #107373, #146603, …
maximal normal subgroup of#107368, #107373, #146603, …
maximal quotient ofC2×#20528, C2×#20530, C2×#20540, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53213);