Finite Group Databasebeta
Cayley diagram

C2×#2947 #60160

order256
nilpotency class3
isoclinismisoclinic class of #576
automorphismAut(G) order 131072
homologyAbelianization (H1) = C24×C4 · Schur multiplier (H2) = C29

Aliases

direct productC2×#2947

Subgroups

subgroupG/H
center, socleC23C22×D4
commutatorC4C24×C4
Frattini, cosocleC2×C4C25
prime radicalC22×#41C22
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C23 ◁ C2×#117 ◁ G
LECSG ▷ C2×C4 ▷ C2 ▷ C1

1365 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 22
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 5 generators on 22 points:

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

Conjugacy classes & character table

88 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#220188, #220189, #220198, …
maximal normal subgroup of#220188, #220189, #220198, …
maximal quotient ofC2×#17853, C2×#17874, C2×#17876, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 53148);