Finite Group Databasebeta
Cayley diagram

C2×#1564 #17785

order256
nilpotency class3
isoclinismisoclinic class of D8
automorphismAut(G) order 65536
homologyAbelianization (H1) = C23×C8 · Schur multiplier (H2) = C24×C4

Aliases

direct productC2×#1564

Subgroups

subgroupG/H
centerC2×C42D4
commutatorC4C23×C8
Frattini, cosocleC42C24
socleC23C2×C4⋊C4
prime radicalC24C4⋊C4
LCSG ▷ C4 ▷ C2 ▷ C1
UCSC1 ◁ C2×C42 ◁ C22×C42 ◁ G
LECSG ▷ C42 ▷ C22 ▷ C1

415 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);(3,4,5,7,6,8,9,10)(11,12)(13,20)(14,18)(15,24)(16,19)(17,22)(21,25)(23,26);(11,13,15,22,16,23,14,21)(12,17,18,20,19,25,24,26);(11,14,16,15)(12,18,19,24)(13,21,23,22)(17,20,25,26)

Conjugacy classes & character table

112 conjugacy classes — view the full character table.

Relationships

maximal subgroup of#108838, #108839, #108840, …
maximal normal subgroup of#108838, #108839, #108840, …
maximal quotient ofC2×#7872, C2×C4×#334, C2×C4×#335, …

GAP

Construct this group in GAP via the SmallGroups library:

gap> SmallGroup(256, 10773);