Finite Group Databasebeta
Cayley diagram

C2×#1542 #17697

order256
nilpotency class3
isoclinismisoclinic class of #327
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C4 · Schur multiplier (H2) = C25

Aliases

direct productC2×#1542

Subgroups

subgroupG/H
centerC22×C4C22⋊C4
commutatorC2×C4C23×C4
Frattini, cosocleC42C24
socleC23C2×C22⋊C4
prime radicalC24C22⋊C4
LCSG ▷ C2×C4 ▷ C22 ▷ C1
UCSC1 ◁ C22×C4 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

525 conjugacy classes of subgroups.

Full subgroup data →

Presentation

minimal degreeμ(G) = 26
transitive degreeμt(G) = 128

A minimal faithful permutation representation — 4 generators on 26 points:

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

Conjugacy classes & character table

76 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#106036, #107699, #107717, …
maximal normal subgroup of#106036, #107699, #107717, …
maximal quotient ofC2×#7562, C2×#7566, #160434, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10685);