Finite Group Databasebeta
Cayley diagram

C2×#3177 #60681

order256
nilpotency class3
isoclinismisoclinic class of #3057
automorphism?
homologyAbelianization (H1) = C25 · Schur multiplier (H2) = C28

Aliases

direct productC2×#3177

Subgroups

subgroupG/H
center, socleC23C22×D4
commutator, Frattini, cosocleC2×C4C25
prime radicalC24C2×D4
LCSG ▷ C2×C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

921 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 42
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 42 points:

(1,2);(3,4)(5,8)(6,7)(9,10)(11,12,16,20)(13,17,22,30)(14,24,27,39)(15,28,25,19)(18,32,33,26)(21,34,36,42)(23,38,35,31)(29,40,41,37);(4,7)(8,10)(11,13,16,22)(12,17,20,30)(14,21,27,36)(15,23,25,35)(18,29,33,41)(19,31,28,38)(24,34,39,42)(26,37,32,40);(11,14,25,32,16,27,15,26)(12,18,28,39,20,33,19,24)(13,21,35,40,22,36,23,37)(17,29,38,42,30,41,31,34);(3,5,6,9)(4,8,7,10)(13,22)(17,30)(21,36)(23,35)(29,41)(31,38)(34,42)(37,40)

Conjugacy classes & character table

64 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#129562, #129911, #129934, …
maximal normal subgroup of#129562, #129911, #129934, …
maximal quotient ofC2×#20821, C2×#21281, C2×#21289, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53669);